U.S. Route 21 in South Carolina
E1004598
U.S. Route 21 in South Carolina is a north–south federal highway that connects coastal areas near Beaufort and Hilton Head Island to inland communities as it travels toward the central part of the state.
All labels observed (1)
| Label | Occurrences |
|---|---|
| U.S. Route 21 in South Carolina canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T12803835 — 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: U.S. Route 21 in South Carolina Context triple: [U.S. Highways in South Carolina, hasRoute, U.S. Route 21 in South Carolina]
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A.
U.S. Route 21 in North Carolina
U.S. Route 21 in North Carolina is a north–south United States highway that runs from the Charlotte metropolitan area through the Piedmont toward the Virginia state line, serving as a regional connector for several communities along its corridor.
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B.
U.S. Route 17 in North Carolina
U.S. Route 17 in North Carolina is a major north–south highway that runs along the state’s coastal plain, connecting cities such as Wilmington, Jacksonville, New Bern, and Elizabeth City as part of a key regional corridor between South Carolina and Virginia.
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C.
U.S. Route 19 in North Carolina
U.S. Route 19 in North Carolina is a major north–south U.S. Highway that traverses the western part of the state, connecting mountain communities and serving as an important regional transportation corridor.
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D.
U.S. Route 23 in North Carolina
U.S. Route 23 in North Carolina is a major north–south highway traversing the state's western region, connecting mountain communities and serving as an important corridor for regional travel and commerce.
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E.
U.S. Route 321 in North Carolina
U.S. Route 321 in North Carolina is a major north–south highway that connects the Charlotte metropolitan area with the foothills and High Country regions, serving cities such as Gastonia, Hickory, Lenoir, and Boone.
- 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: U.S. Route 21 in South Carolina Target entity description: U.S. Route 21 in South Carolina is a north–south federal highway that connects coastal areas near Beaufort and Hilton Head Island to inland communities as it travels toward the central part of the state.
-
A.
U.S. Route 21 in North Carolina
U.S. Route 21 in North Carolina is a north–south United States highway that runs from the Charlotte metropolitan area through the Piedmont toward the Virginia state line, serving as a regional connector for several communities along its corridor.
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B.
U.S. Route 17 in North Carolina
U.S. Route 17 in North Carolina is a major north–south highway that runs along the state’s coastal plain, connecting cities such as Wilmington, Jacksonville, New Bern, and Elizabeth City as part of a key regional corridor between South Carolina and Virginia.
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C.
U.S. Route 19 in North Carolina
U.S. Route 19 in North Carolina is a major north–south U.S. Highway that traverses the western part of the state, connecting mountain communities and serving as an important regional transportation corridor.
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D.
U.S. Route 23 in North Carolina
U.S. Route 23 in North Carolina is a major north–south highway traversing the state's western region, connecting mountain communities and serving as an important corridor for regional travel and commerce.
-
E.
U.S. Route 321 in North Carolina
U.S. Route 321 in North Carolina is a major north–south highway that connects the Charlotte metropolitan area with the foothills and High Country regions, serving cities such as Gastonia, Hickory, Lenoir, and Boone.
- F. None of above. chosen
Statements (47)
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: U.S. Route 21 in South Carolina Description of subject: U.S. Route 21 in South Carolina is a north–south federal highway that connects coastal areas near Beaufort and Hilton Head Island to inland communities as it travels toward the central part of the state.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.