--- title: "Segmented Discourse Representation Structures (SDRS) | Intro Semantics" description: "Segmented discourse representation structures (SDRS) model how discourse pieces connect through relations like contrast and elaboration in Semantics and Pragmatics." canonical: "https://fiveable.me/introduction-semantics-pragmatics/key-terms/segmented-discourse-representation-structures-sdrs" type: "key-term" subject: "Intro to Semantics and Pragmatics" unit: "Unit 13" --- # Segmented Discourse Representation Structures (SDRS) | Intro Semantics ## Definition Segmented discourse representation structures (SDRS) are a way to represent how parts of a text or dialogue connect in Semantics and Pragmatics. They extend DRT by adding discourse segments and relations like elaboration, contrast, and causation. ## What It Is Segmented discourse representation structures, or SDRS, are a Semantics and Pragmatics model for showing how a conversation or text is built out of connected pieces, not just isolated sentences. Instead of treating discourse as a flat list, SDRS treats it as a structured set of segments with logical relations between them. The basic idea is that when you hear or read multiple sentences, you do more than track who or what each sentence is about. You also figure out how the sentences fit together. Did one sentence explain the previous one? Did it contrast with it? Did it give a cause, an example, or a continuation? SDRS makes those links part of the meaning representation. This framework grows out of Discourse Representation Theory (DRT). DRT is good at tracking discourse referents, so pronouns and repeated mentions can be interpreted across sentence boundaries. SDRS keeps that strength, but adds discourse structure on top. That extra layer matters because real communication is not just about reference. It is also about coherence, which is the sense that the parts belong together in a sensible order. A simple example is: “Maria missed the bus. She was late for class.” DRT can help connect “She” to Maria, but SDRS asks how the two sentences relate. The second sentence is naturally read as a consequence or explanation of the first. If the text were “Maria missed the bus. Her friend did not,” the relation shifts toward contrast. Those relations are not decorative, they guide how you interpret the whole passage. In this course, SDRS is useful because it shows the bridge between sentence meaning and discourse meaning. It gives you a formal way to talk about why some texts feel smooth and connected while others feel abrupt or confusing. That makes it a central development in theories of discourse structure, especially when you are comparing how context shapes interpretation across more than one sentence. ## Why It Matters SDRS matters because a lot of meaning in natural language lives between sentences, not inside them. If you only analyze sentence by sentence, you miss how a speaker builds an explanation, changes direction, adds background, or signals contrast. SDRS gives you a structure for describing those moves instead of treating them as vague intuition. It also gives you a cleaner way to talk about coherence. In class, when you explain why a paragraph feels organized, you are often noticing rhetorical relations without naming them. SDRS lets you name the relation and show how it contributes to interpretation. That is especially useful for discourse analysis, where the question is not just “what does this sentence mean?” but “how does this sentence fit with the ones around it?” The term also matters because it extends DRT in a natural way. If your course has already covered anaphora, reference, or discourse referents, SDRS is the next step that adds organization across larger stretches of language. That makes it a good tool for comparing theories: DRT tracks entities, while SDRS tracks how larger chunks of discourse connect. You will also see the same idea in practical language tasks, like analyzing dialogue, story structure, or how a listener infers a causal link that was never stated directly. SDRS gives you a formal lens for those inferences, which is exactly what Semantics and Pragmatics keeps coming back to: how form, context, and interpretation work together. ## Connections ### Discourse Representation Theory (DRT) DRT is the base model that SDRS extends. DRT tracks discourse referents and helps explain how pronouns and repeated mentions stay connected across sentences. SDRS keeps that machinery but adds a higher-level structure for how whole segments of discourse relate, so it goes beyond reference and into coherence. ### Coherence Coherence is the feeling that a text or conversation fits together in a meaningful way. SDRS is one formal way to model that feeling by showing which discourse segments support, contrast, explain, or elaborate on one another. If a passage feels coherent, SDRS helps describe why. ### [Rhetorical Relations](/introduction-semantics-pragmatics/key-terms/rhetorical-relations) Rhetorical relations are the links SDRS uses to connect discourse segments. Relations like elaboration, contrast, and causation tell you how one stretch of language changes the interpretation of another. When you identify a rhetorical relation, you are doing the exact kind of analysis SDRS formalizes. ### [Discourse Structure](/introduction-semantics-pragmatics/key-terms/discourse-structure) Discourse structure is the larger organization of a text or dialogue. SDRS treats that structure as hierarchical rather than flat, so some segments depend on others more strongly. This is what lets the theory represent narratives, explanations, and back-and-forth dialogue in a more realistic way. ## On the AP Exam A quiz question or passage-analysis prompt may give you two or three sentences and ask how they connect. Your job is to identify the discourse relation, explain how the second segment changes or extends the first, and show why that makes the text coherent. For example, you might say a sentence elaborates on a previous claim, or that two clauses are in contrast rather than simple sequence. If the question asks you to compare DRT and SDRS, focus on the extra layer SDRS adds. DRT tracks entities and reference; SDRS tracks how discourse segments are organized. In short answers or essay responses, use the relation name, then explain the interpretive effect it has on the reader or listener. That is usually the move professors want to see. ## Key Takeaways - Segmented discourse representation structures, or SDRS, model how larger pieces of discourse connect, not just what each sentence means on its own. - SDRS extends DRT by adding discourse segments and the relations between them, which makes it better at explaining coherence. - Relations like elaboration, contrast, and causation help show how one part of a text shapes the interpretation of another. - The theory is useful when you need to explain how a story, dialogue, or paragraph feels organized across sentence boundaries. - If DRT tracks reference, SDRS tracks structure, so the two theories work together rather than doing the exact same job. ## FAQs ### What is segmented discourse representation structures (SDRS) in Intro to Semantics and Pragmatics? SDRS is a formal way to represent how different parts of a discourse connect to each other. It extends DRT by adding relations between segments, such as elaboration, contrast, and causation. In this course, it shows how meaning goes beyond individual sentences. ### How is SDRS different from DRT? DRT mainly tracks discourse referents, so it is strong on reference and anaphora. SDRS keeps that but adds a layer for discourse organization, which lets you describe how one sentence supports, contrasts with, or explains another. That makes SDRS better for full-text coherence. ### Can you give an example of SDRS? If a text says, “It started raining. The picnic was canceled,” SDRS can represent the second sentence as causally related to the first. If it says, “It started raining. The picnic continued anyway,” the relation shifts and the contrast becomes part of the interpretation. The point is to model the connection, not just the content. ### How do you use SDRS in a class response? Use it to explain how a stretch of discourse hangs together. Name the relation between segments and say what that relation does for coherence or interpretation. If you only describe the sentence meanings separately, you are missing the SDRS part of the analysis. ## Related Study Guides - [13.4 Extending DRT: SDRT and other developments](/introduction-semantics-pragmatics/unit-13/extending-drt-sdrt-developments/study-guide/89l7O9a0rrMgFLfQ) ## About This Document Canonical Fiveable pages are available as Markdown at the same path plus `.md`. - [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns - [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing - [MCP server](https://fiveable.me/mcp): call Fiveable as tools instead of fetching pages (`https://fiveable.me/api/mcp`) - [MCP server for AP teachers](https://fiveable.me/mcp/teachers): a teacher's classes, assignments and AP-rubric grading (`https://fiveable.me/api/mcp/teacher`) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/introduction-semantics-pragmatics/key-terms/segmented-discourse-representation-structures-sdrs#resource","name":"Segmented Discourse Representation Structures (SDRS) | Intro Semantics","url":"https://fiveable.me/introduction-semantics-pragmatics/key-terms/segmented-discourse-representation-structures-sdrs","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/introduction-semantics-pragmatics/key-terms/segmented-discourse-representation-structures-sdrs#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-07-03T02:22:58.641Z","isPartOf":{"@type":"Collection","name":"Intro to Semantics and Pragmatics Key Terms","url":"https://fiveable.me/introduction-semantics-pragmatics/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/introduction-semantics-pragmatics/key-terms/segmented-discourse-representation-structures-sdrs#term","name":"segmented discourse representation structures (SDRS)","description":"Segmented discourse representation structures (SDRS) are a way to represent how parts of a text or dialogue connect in Semantics and Pragmatics. 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