US 421
E1326642
UNEXPLORED
US 421 is a U.S. highway running through several states in the eastern and southeastern United States, connecting cities from North Carolina to Indiana.
All labels observed (1)
| Label | Occurrences |
|---|---|
| US 421 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T18474610 — 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 421 Context triple: [U.S. Route 421, stateAbbreviation, US 421]
-
A.
US 521
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.
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B.
US 41
US 41 is a major north–south U.S. highway running from Miami, Florida, through the Midwest to the Upper Peninsula of Michigan near the Canadian border.
-
C.
US 441
US 441 is a major north–south U.S. Highway running through the southeastern United States, notably traversing parts of Florida, Georgia, North Carolina, and Tennessee.
-
D.
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.
-
E.
US 201
US 201 is a U.S. highway in Maine that runs north–south from Brunswick to the Canadian border, serving as a key route through the state's interior.
- 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 421 Target entity description: US 421 is a U.S. highway running through several states in the eastern and southeastern United States, connecting cities from North Carolina to Indiana.
-
A.
US 521
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.
-
B.
US 41
US 41 is a major north–south U.S. highway running from Miami, Florida, through the Midwest to the Upper Peninsula of Michigan near the Canadian border.
-
C.
US 441
US 441 is a major north–south U.S. Highway running through the southeastern United States, notably traversing parts of Florida, Georgia, North Carolina, and Tennessee.
-
D.
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.
-
E.
US 201
US 201 is a U.S. highway in Maine that runs north–south from Brunswick to the Canadian border, serving as a key route through the state's interior.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.