Plymouth Rock
E16688
Plymouth Rock is a historic boulder on the shore of Plymouth, Massachusetts, traditionally regarded as the landing site of the Pilgrims in 1620 and a symbol of the founding of the United States.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Plymouth Rock canonical | 22 |
| Plymouth Rock Portico | 1 |
| Plymouth Rock area | 1 |
| Plymouth Rock vicinity | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T141702 — 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: Plymouth Rock Context triple: [Plymouth, Massachusetts, knownFor, Plymouth Rock]
-
A.
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.
-
B.
Liberty Island
Liberty Island is a small island in New York Harbor best known as the site of the Statue of Liberty, a symbol of freedom and the United States.
-
C.
Salem Maritime National Historic Site
Salem Maritime National Historic Site is a historic waterfront area in Salem, Massachusetts, preserving 18th- and 19th-century wharves, buildings, and artifacts related to the city’s prominent role in early American maritime trade.
-
D.
Mission Hill
Mission Hill is a residential Boston neighborhood known for its historic brick rowhouses, hilly streets, and proximity to major medical and academic institutions.
-
E.
Freedom Trail
The Freedom Trail is a historic walking route in Boston that links significant sites from the American Revolution and early United States history.
- 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: Plymouth Rock Target entity description: Plymouth Rock is a historic boulder on the shore of Plymouth, Massachusetts, traditionally regarded as the landing site of the Pilgrims in 1620 and a symbol of the founding of the United States.
-
A.
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.
-
B.
Liberty Island
Liberty Island is a small island in New York Harbor best known as the site of the Statue of Liberty, a symbol of freedom and the United States.
-
C.
Salem Maritime National Historic Site
Salem Maritime National Historic Site is a historic waterfront area in Salem, Massachusetts, preserving 18th- and 19th-century wharves, buildings, and artifacts related to the city’s prominent role in early American maritime trade.
-
D.
Mission Hill
Mission Hill is a residential Boston neighborhood known for its historic brick rowhouses, hilly streets, and proximity to major medical and academic institutions.
-
E.
Freedom Trail
The Freedom Trail is a historic walking route in Boston that links significant sites from the American Revolution and early United States history.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
boulder
ⓘ
historic landmark ⓘ tourist attraction ⓘ |
| approximateDimensions | about 5 feet by 3.5 feet ⓘ |
| approximateWeight | about 10 tons ⓘ |
| associatedWithEvent |
European colonization of New England
ⓘ
Mayflower landing at Plymouth ⓘ
surface form:
Mayflower landing
landing of the Pilgrims ⓘ |
| associatedWithGroup | Pilgrims ⓘ |
| associatedWithVessel | Mayflower ⓘ |
| broken | 1774 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Plymouth County ⓘ |
| coveredBy | granite portico ⓘ |
| culturalRole |
American patriotic symbol
ⓘ
site of commemorations on Thanksgiving ⓘ |
| featuredIn |
American school textbooks
ⓘ
tourism brochures for Massachusetts ⓘ |
| firstDocumentedAssociationWithPilgrims | 18th century ⓘ |
| hasCoordinateLatitude | 41.9583° N ⓘ |
| hasCoordinateLongitude | 70.6647° W ⓘ |
| hasInscription | 1620 ⓘ |
| hasMaterial | granite ⓘ |
| hasProtectionStatus | protected historic site ⓘ |
| heritageDesignation | National Historic Landmark ⓘ |
| linkedToMyth | traditional but historically uncertain landing site ⓘ |
| locatedIn |
Plymouth Harbor
ⓘ
Plymouth, Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| managedBy |
Massachusetts
ⓘ
surface form:
Commonwealth of Massachusetts
Massachusetts Department of Conservation and Recreation ⓘ
surface form:
Department of Conservation and Recreation of Massachusetts
|
| moved |
1774
ⓘ
1834 ⓘ 1880 ⓘ |
| nearbyAttraction |
Mayflower II
ⓘ
Pilgrim Hall Museum ⓘ |
| ownedBy |
Massachusetts
ⓘ
surface form:
Commonwealth of Massachusetts
|
| partOf | Pilgrim Memorial State Park ⓘ |
| porticoCompleted | 1921 ⓘ |
| porticoDesignedBy | McKim, Mead & White ⓘ |
| rejoinedFragments | 1880 ⓘ |
| returnedToShoreline | 1921 ⓘ |
| state | Massachusetts ⓘ |
| symbolOf |
New England heritage
ⓘ
arrival of the Pilgrims ⓘ founding of the United States ⓘ |
| touristVisitsPerYear | over one million visitors ⓘ |
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: Plymouth Rock Description of subject: Plymouth Rock is a historic boulder on the shore of Plymouth, Massachusetts, traditionally regarded as the landing site of the Pilgrims in 1620 and a symbol of the founding of the United States.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Plymouth, Massachusetts
this entity surface form:
Plymouth Rock vicinity
this entity surface form:
Plymouth Rock Portico
this entity surface form:
Plymouth Rock area