Edmund Pettus Bridge
E29117
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Edmund Pettus Bridge canonical | 19 |
| Edmund Pettus Bridge (over the Alabama River at Selma) | 1 |
| Edmund Pettus Bridge, Selma, Alabama | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T226074 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
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]
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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.
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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.
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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.
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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.
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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.
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
Statements (49)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Edmund Pettus Bridge Description of subject: 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.
Referenced by (21)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Dallas County, Alabama
this entity surface form:
Edmund Pettus Bridge (over the Alabama River at Selma)
this entity surface form:
Edmund Pettus Bridge, Selma, Alabama