Mystic River Bridge
E14086
The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mystic River Bridge canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T16591 — 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: Mystic River Bridge Context triple: [Mystic River, crossedBy, Mystic River Bridge]
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A.
St. Johns Bridge
St. Johns Bridge is a historic steel suspension bridge in Portland, Oregon, noted for its striking Gothic-style towers and scenic span over the Willamette River.
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B.
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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C.
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.
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D.
Key Bridge
Key Bridge is a historic steel-arch bridge spanning the Potomac River, connecting Washington, D.C. to Arlington, Virginia.
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E.
Bear Mountain Bridge
Bear Mountain Bridge is a steel suspension bridge in New York that carries U.S. Route 6 and U.S. Route 202 across the Hudson River near Bear Mountain State Park.
- 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: Mystic River Bridge Target entity description: The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
-
A.
St. Johns Bridge
St. Johns Bridge is a historic steel suspension bridge in Portland, Oregon, noted for its striking Gothic-style towers and scenic span over the Willamette River.
-
B.
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.
-
C.
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.
-
D.
Key Bridge
Key Bridge is a historic steel-arch bridge spanning the Potomac River, connecting Washington, D.C. to Arlington, Virginia.
-
E.
Bear Mountain Bridge
Bear Mountain Bridge is a steel suspension bridge in New York that carries U.S. Route 6 and U.S. Route 202 across the Hudson River near Bear Mountain State Park.
- F. None of above. chosen
Statements (46)
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: Mystic River Bridge Description of subject: The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.