US 521
E1061012
UNEXPLORED
US 521 is a U.S. highway running through the Carolinas, connecting communities in South Carolina and North Carolina as part of the federal highway system.
All labels observed (3)
| Label | Occurrences |
|---|---|
| US 521 canonical | 1 |
| US 521 Alt. | 1 |
| US 521 Alternate | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13784788 — 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: US 521 Context triple: [I-485, hasJunctionWith, US 521]
-
A.
US 223
US 223 is a short U.S. Highway in the Midwest that serves as a connector route between US 23 in Michigan and the Ohio Turnpike near Toledo.
-
B.
US 12
US 12 is a major east–west United States highway that runs from Aberdeen, Washington, to Detroit, Michigan, traversing several northern states.
-
C.
US 62
US 62 is a major east–west United States highway that stretches from the Mexican border in El Paso, Texas, to Niagara Falls, New York, passing through several central states.
-
D.
US 219
US 219 is a north–south U.S. highway running through parts of New York, Pennsylvania, Maryland, and West Virginia, serving as a key regional route in the Appalachian region.
-
E.
US 82
US 82 is a major east–west U.S. Highway running across the southern United States, passing through states such as New Mexico, Texas, Arkansas, Mississippi, Alabama, and Georgia.
- 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: US 521 Target entity description: US 521 is a U.S. highway running through the Carolinas, connecting communities in South Carolina and North Carolina as part of the federal highway system.
-
A.
US 223
US 223 is a short U.S. Highway in the Midwest that serves as a connector route between US 23 in Michigan and the Ohio Turnpike near Toledo.
-
B.
US 12
US 12 is a major east–west United States highway that runs from Aberdeen, Washington, to Detroit, Michigan, traversing several northern states.
-
C.
US 62
US 62 is a major east–west United States highway that stretches from the Mexican border in El Paso, Texas, to Niagara Falls, New York, passing through several central states.
-
D.
US 219
US 219 is a north–south U.S. highway running through parts of New York, Pennsylvania, Maryland, and West Virginia, serving as a key regional route in the Appalachian region.
-
E.
US 82
US 82 is a major east–west U.S. Highway running across the southern United States, passing through states such as New Mexico, Texas, Arkansas, Mississippi, Alabama, and Georgia.
- F. None of above. chosen
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: US 521
linked to: US 521