U.S. Route 21 in North Carolina
E860164
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| U.S. Route 21 in North Carolina canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10390316 — 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 North Carolina Context triple: [U.S. Highways in North Carolina, hasRoute, U.S. Route 21 in North Carolina]
-
A.
U.S. Route 158 in North Carolina
U.S. Route 158 in North Carolina is an east–west U.S. highway that traverses the northern part of the state, connecting the Piedmont region to the Outer Banks and serving as a major corridor for local and tourist traffic.
-
B.
U.S. Route 501 in North Carolina
U.S. Route 501 in North Carolina is a major north–south highway that connects cities such as Durham and Chapel Hill, serving as an important regional corridor for traffic between central North Carolina and Virginia.
-
C.
North Carolina Highway 210
North Carolina Highway 210 is a state highway running across central and southeastern North Carolina, connecting rural communities, military areas, and coastal regions.
-
D.
North Carolina Highway
North Carolina Highway is a designation for state-maintained primary and secondary roads that form part of North Carolina’s statewide highway network.
-
E.
North Carolina Highway 119
North Carolina Highway 119 is a state highway in North Carolina that serves as a regional connector route through communities including Mebane.
- 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 North Carolina Target entity description: 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.
-
A.
U.S. Route 158 in North Carolina
U.S. Route 158 in North Carolina is an east–west U.S. highway that traverses the northern part of the state, connecting the Piedmont region to the Outer Banks and serving as a major corridor for local and tourist traffic.
-
B.
U.S. Route 501 in North Carolina
U.S. Route 501 in North Carolina is a major north–south highway that connects cities such as Durham and Chapel Hill, serving as an important regional corridor for traffic between central North Carolina and Virginia.
-
C.
North Carolina Highway 210
North Carolina Highway 210 is a state highway running across central and southeastern North Carolina, connecting rural communities, military areas, and coastal regions.
-
D.
North Carolina Highway
North Carolina Highway is a designation for state-maintained primary and secondary roads that form part of North Carolina’s statewide highway network.
-
E.
North Carolina Highway 119
North Carolina Highway 119 is a state highway in North Carolina that serves as a regional connector route through communities including Mebane.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
U.S. Highway segment
ⓘ
road transportation infrastructure ⓘ |
| category |
Transportation in Iredell County, North Carolina
ⓘ
Transportation in Mecklenburg County, North Carolina ⓘ Transportation in Surry County, North Carolina ⓘ U.S. Highways in North Carolina ⓘ |
| connectsToState | Virginia NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| direction | north–south ⓘ |
| function | regional connector ⓘ |
| highwaySystem | United States Numbered Highway System ⓘ |
| maintainedBy | North Carolina Department of Transportation NERFINISHED ⓘ |
| overlapsWith | Interstate 77 in North Carolina NERFINISHED ⓘ |
| partOf | U.S. Route 21 NERFINISHED ⓘ |
| passesNearCity |
Mooresville, North Carolina
NERFINISHED
ⓘ
Statesville, North Carolina NERFINISHED ⓘ Troutman, North Carolina NERFINISHED ⓘ |
| passesNearTown |
Elkin, North Carolina
NERFINISHED
ⓘ
Harmony, North Carolina NERFINISHED ⓘ Jonesville, North Carolina NERFINISHED ⓘ Sparta, North Carolina NERFINISHED ⓘ |
| passesThroughCity | Charlotte, North Carolina NERFINISHED ⓘ |
| passesThroughCounty |
Iredell County, North Carolina
NERFINISHED
ⓘ
Mecklenburg County, North Carolina NERFINISHED ⓘ Surry County, North Carolina NERFINISHED ⓘ |
| passesThroughRegion |
Charlotte metropolitan area
NERFINISHED
ⓘ
North Carolina Piedmont NERFINISHED ⓘ |
| state | North Carolina NERFINISHED ⓘ |
| terminusDirectionNorth | Virginia state line ⓘ |
| transportationMode | motor vehicle traffic ⓘ |
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 North Carolina Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.