North 21st Street
E413528
North 21st Street is an urban thoroughfare in Philadelphia, Pennsylvania, running through Center City and nearby neighborhoods as part of the city's numbered north–south street grid.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North 21st Street canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3617097 — 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: North 21st Street Context triple: [Race Street, crosses, North 21st Street]
-
A.
North 20th Street
North 20th Street is a north–south thoroughfare in Philadelphia, Pennsylvania, running through Center City and several adjacent neighborhoods.
-
B.
North 17th Street
North 17th Street is an urban thoroughfare in Philadelphia, Pennsylvania, running through Center City and nearby neighborhoods as part of the city's numbered street grid.
-
C.
North 16th Street
North 16th Street is a roadway in Philadelphia, Pennsylvania, that runs through multiple neighborhoods and intersects key east–west streets in the city’s grid.
-
D.
North 11th Street
North 11th Street is an urban thoroughfare that serves as part of the numbered street grid in its city, intersecting with major roads such as Race Street.
-
E.
North 19th Street
North 19th Street is an urban thoroughfare likely located in a U.S. city, serving as part of the local street grid and intersecting with major roads such as Race Street.
- 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: North 21st Street Target entity description: North 21st Street is an urban thoroughfare in Philadelphia, Pennsylvania, running through Center City and nearby neighborhoods as part of the city's numbered north–south street grid.
-
A.
North 20th Street
North 20th Street is a north–south thoroughfare in Philadelphia, Pennsylvania, running through Center City and several adjacent neighborhoods.
-
B.
North 17th Street
North 17th Street is an urban thoroughfare in Philadelphia, Pennsylvania, running through Center City and nearby neighborhoods as part of the city's numbered street grid.
-
C.
North 16th Street
North 16th Street is a roadway in Philadelphia, Pennsylvania, that runs through multiple neighborhoods and intersects key east–west streets in the city’s grid.
-
D.
North 11th Street
North 11th Street is an urban thoroughfare that serves as part of the numbered street grid in its city, intersecting with major roads such as Race Street.
-
E.
North 19th Street
North 19th Street is an urban thoroughfare likely located in a U.S. city, serving as part of the local street grid and intersecting with major roads such as Race Street.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
road in Philadelphia
ⓘ
street ⓘ urban thoroughfare ⓘ |
| city | Philadelphia ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| gridSystem | Philadelphia numbered street grid ⓘ |
| hasDirectionPrefix | North ⓘ |
| hasGeneralUse | urban traffic thoroughfare ⓘ |
| hasLanes | multiple motor-vehicle lanes ⓘ |
| hasNamingAuthority |
Government of the City of Philadelphia
ⓘ
surface form:
City of Philadelphia government
|
| hasSidewalks | yes ⓘ |
| hasStreetType | Street ⓘ |
| isNumberedStreet | true ⓘ |
| isPublicRoad | true ⓘ |
| locatedIn |
Pennsylvania
ⓘ
Philadelphia ⓘ
surface form:
Philadelphia, Pennsylvania
United States of America ⓘ
surface form:
United States
|
| orientation | north–south ⓘ |
| partOf |
Center City Philadelphia
ⓘ
surface form:
Center City, Philadelphia
Philadelphia numbered north–south streets ⓘ Philadelphia street grid ⓘ |
| runsThrough |
Center City Philadelphia
ⓘ
surface form:
Center City, Philadelphia
nearby Philadelphia neighborhoods ⓘ |
| state | Pennsylvania ⓘ |
| streetNumber | 21 ⓘ |
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: North 21st Street Description of subject: North 21st Street is an urban thoroughfare in Philadelphia, Pennsylvania, running through Center City and nearby neighborhoods as part of the city's numbered north–south street grid.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.