Old North Bridge
E11145
Old North Bridge is a historic wooden bridge in Concord, Massachusetts, famous as the site of one of the first battles of the American Revolutionary War on April 19, 1775.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T96889 — 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: Old North Bridge Context triple: [North Bridge monument in Concord, hasNearbyAttraction, Old North Bridge]
-
A.
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.
-
B.
Albany–Rensselaer rail bridge
The Albany–Rensselaer rail bridge is a major railroad bridge in New York State that carries rail traffic between Albany and Rensselaer across the Hudson River.
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C.
Brooklyn Bridge
The Brooklyn Bridge is a historic 19th-century suspension bridge spanning the East River, renowned as an iconic symbol of New York City and a major connection between Manhattan and Brooklyn.
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D.
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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E.
Bunker Hill Monument
The Bunker Hill Monument is a granite obelisk in Boston commemorating one of the first major battles of the American Revolutionary War.
- 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: Old North Bridge Target entity description: Old North Bridge is a historic wooden bridge in Concord, Massachusetts, famous as the site of one of the first battles of the American Revolutionary War on April 19, 1775.
-
A.
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.
-
B.
Albany–Rensselaer rail bridge
The Albany–Rensselaer rail bridge is a major railroad bridge in New York State that carries rail traffic between Albany and Rensselaer across the Hudson River.
-
C.
Brooklyn Bridge
The Brooklyn Bridge is a historic 19th-century suspension bridge spanning the East River, renowned as an iconic symbol of New York City and a major connection between Manhattan and Brooklyn.
-
D.
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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E.
Bunker Hill Monument
The Bunker Hill Monument is a granite obelisk in Boston commemorating one of the first major battles of the American Revolutionary War.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
historic bridge
ⓘ
tourist attraction ⓘ wooden bridge ⓘ |
| associatedWithQuote | "the shot heard round the world" ⓘ |
| battle |
Battle of Concord
ⓘ
linked to:
Battles of Lexington and Concord
Battles of Lexington and Concord ⓘ |
| category |
American Revolutionary War sites
ⓘ
Bridges in Massachusetts ⓘ Tourist attractions in Middlesex County, Massachusetts ⓘ Wooden bridges in the United States ⓘ |
| commemoratedBy | Ralph Waldo Emerson’s poem "Concord Hymn" ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses | Concord River ⓘ |
| era | 18th century (original bridge) ⓘ |
| famousFor |
being a site of the Battles of Lexington and Concord
ⓘ
being one of the first battle sites of the American Revolutionary War ⓘ |
| hasHeritageDesignation |
National Historic Landmark (as part of Minute Man National Historical Park)
ⓘ
linked to:
National Historic Landmark
|
| hasInterpretiveSignage | yes ⓘ |
| hasNearbyMonument |
Graves of British soldiers
ⓘ
Minute Man statue ⓘ
linked to:
The Minute Man statue
Obelisk monument to the American militia ⓘ |
| hasReconstruction | current bridge is a reconstruction of the 18th‑century bridge ⓘ |
| isSymbolOf |
American independence
ⓘ
beginning of armed resistance to British rule in the Thirteen Colonies ⓘ |
| locatedIn |
Concord, Massachusetts
ⓘ
Massachusetts ⓘ Middlesex County, Massachusetts ⓘ United States ⓘ
linked to:
United States of America
|
| maintainedBy | National Park Service ⓘ |
| near |
Concord town center
ⓘ
The Old Manse (historic house) ⓘ
linked to:
Old Manse
|
| notableFor |
first ordered volley by American colonial militia against British troops
ⓘ
site where British troops were forced to retreat to Boston ⓘ |
| originalConstructionMaterial | wood ⓘ |
| ownedBy |
United States federal government
ⓘ
linked to:
United States government
|
| partOf | Minute Man National Historical Park ⓘ |
| riverBankConnection | connects the eastern and western banks of the Concord River ⓘ |
| sideInConflict |
British regulars
ⓘ
Patriot militia ⓘ |
| significantEventDate | April 19, 1775 ⓘ |
| structureType | timber bridge ⓘ |
| tourism | popular destination for Revolutionary War history tourism ⓘ |
| usedFor | pedestrian traffic ⓘ |
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: Old North Bridge Description of subject: Old North Bridge is a historic wooden bridge in Concord, Massachusetts, famous as the site of one of the first battles of the American Revolutionary War on April 19, 1775.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Lincoln
linked to: Old North Bridge
subject linked to:
Ralph Waldo Emerson’s poem "Concord Hymn"
subject linked to:
Ralph Waldo Emerson’s poem "Concord Hymn"
linked to: Old North Bridge
subject linked to:
Concord, Lexington, and Lincoln, Massachusetts
subject linked to:
Concord
Concord National Historic Landmark District
→
contains
→
Concord River crossing at Old North Bridge
ⓘ
linked to: Old North Bridge
linked to: Old North Bridge
linked to: Old North Bridge
linked to: Old North Bridge
subject linked to:
Lieutenant Colonel Francis Smith
linked to: Old North Bridge