Triple

T226074
Position Surface form Disambiguated ID Type / Status
Subject Selma to Montgomery marches E4315 entity
Predicate notableLocation P3858 FINISHED
Object Edmund Pettus Bridge
The Edmund Pettus Bridge is a historic steel-arch bridge in Selma, Alabama, best known as the site of the 1965 “Bloody Sunday” attack on civil rights marchers, a pivotal moment in the American civil rights movement.
E29117 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Edmund Pettus Bridge | Statement: [Selma to Montgomery marches, notableLocation, Edmund Pettus Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Edmund Pettus Bridge
Context triple: [Selma to Montgomery marches, notableLocation, Edmund Pettus Bridge]
  • A. Memorial Bridge
    Memorial Bridge is a prominent ceremonial bridge spanning the Potomac River, symbolically linking Arlington National Cemetery with the Lincoln Memorial in Washington, D.C.
  • B. Woodrow Wilson Bridge
    The Woodrow Wilson Bridge is a major bascule highway bridge carrying the Capital Beltway (I-95/I-495) between Virginia and Maryland just south of Washington, D.C.
  • C. 14th Street Bridge
    The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
  • D. Theodore Roosevelt Bridge
    The Theodore Roosevelt Bridge is a major highway bridge over the Potomac River in Washington, D.C., carrying traffic between the city and Arlington, Virginia.
  • E. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Edmund Pettus Bridge
Triple: [Selma to Montgomery marches, notableLocation, Edmund Pettus Bridge]
Generated description
The Edmund Pettus Bridge is a historic steel-arch bridge in Selma, Alabama, best known as the site of the 1965 “Bloody Sunday” attack on civil rights marchers, a pivotal moment in the American civil rights movement.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Edmund Pettus Bridge
Target entity description: The Edmund Pettus Bridge is a historic steel-arch bridge in Selma, Alabama, best known as the site of the 1965 “Bloody Sunday” attack on civil rights marchers, a pivotal moment in the American civil rights movement.
  • A. Memorial Bridge
    Memorial Bridge is a prominent ceremonial bridge spanning the Potomac River, symbolically linking Arlington National Cemetery with the Lincoln Memorial in Washington, D.C.
  • B. Woodrow Wilson Bridge
    The Woodrow Wilson Bridge is a major bascule highway bridge carrying the Capital Beltway (I-95/I-495) between Virginia and Maryland just south of Washington, D.C.
  • C. 14th Street Bridge
    The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
  • D. Theodore Roosevelt Bridge
    The Theodore Roosevelt Bridge is a major highway bridge over the Potomac River in Washington, D.C., carrying traffic between the city and Arlington, Virginia.
  • E. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69a257363ffc81909757bde7ab3404da completed Feb. 28, 2026, 2:47 a.m.
NER Named-entity recognition batch_69a25c8d97d08190ad7c1c3e9322f34c completed Feb. 28, 2026, 3:10 a.m.
NED1 Entity disambiguation (via context triple) batch_69a35b64d2e88190b2cefa7dee8296af completed Feb. 28, 2026, 9:17 p.m.
NEDg Description generation batch_69a35c0eb2748190987b74acdf5c8b61 completed Feb. 28, 2026, 9:20 p.m.
NED2 Entity disambiguation (via description) batch_69a35c6b0680819084f9e25b32dcffc3 completed Feb. 28, 2026, 9:21 p.m.
Created at: Feb. 28, 2026, 2:53 a.m.