National Route 21 (South Korea)
E790933
National Route 21 (South Korea) is a major national highway that runs north–south through western South Korea, connecting cities such as Cheonan with other key regional centers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| National Route 21 (South Korea) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9293934 — 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: National Route 21 (South Korea) Context triple: [Cheonan, roadTransportConnection, National Route 21 (South Korea)]
-
A.
National Route 1 (South Korea)
National Route 1 (South Korea) is a major arterial highway that runs north–south across the Korean Peninsula, historically linking Seoul with key cities and extending toward the border with North Korea.
-
B.
National Route 7 (South Korea)
National Route 7 (South Korea) is a major national highway running along the country’s east coast, connecting Busan in the south to Goseong near the North Korean border and serving key coastal cities and districts such as Yeonje.
-
C.
Gyeongin Expressway
Gyeongin Expressway is a major South Korean highway that connects Seoul and Incheon, serving as a key transportation corridor for commuters and freight.
-
D.
Yeongdong Expressway
The Yeongdong Expressway is a major South Korean highway that links the Seoul metropolitan area with the eastern Gangwon Province, serving as a key route for cross-country travel and transport.
-
E.
Jungbu Expressway
The Jungbu Expressway is a major South Korean highway that runs through the central region of the country, connecting key cities and facilitating north–south traffic.
- 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: National Route 21 (South Korea) Target entity description: National Route 21 (South Korea) is a major national highway that runs north–south through western South Korea, connecting cities such as Cheonan with other key regional centers.
-
A.
National Route 1 (South Korea)
National Route 1 (South Korea) is a major arterial highway that runs north–south across the Korean Peninsula, historically linking Seoul with key cities and extending toward the border with North Korea.
-
B.
National Route 7 (South Korea)
National Route 7 (South Korea) is a major national highway running along the country’s east coast, connecting Busan in the south to Goseong near the North Korean border and serving key coastal cities and districts such as Yeonje.
-
C.
Gyeongin Expressway
Gyeongin Expressway is a major South Korean highway that connects Seoul and Incheon, serving as a key transportation corridor for commuters and freight.
-
D.
Yeongdong Expressway
The Yeongdong Expressway is a major South Korean highway that links the Seoul metropolitan area with the eastern Gangwon Province, serving as a key route for cross-country travel and transport.
-
E.
Jungbu Expressway
The Jungbu Expressway is a major South Korean highway that runs through the central region of the country, connecting key cities and facilitating north–south traffic.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf |
national highway
ⓘ
road in South Korea ⓘ |
| connectsCity | Cheonan ⓘ |
| country | South Korea ⓘ |
| function | connect regional centers in western South Korea ⓘ |
| hasLanguage | ko ⓘ |
| highwaySystem |
National Route (South Korea)
ⓘ
linked to:
South Korean national highway network
|
| isPartOf | South Korean national highway network ⓘ |
| locatedIn | South Korea ⓘ |
| maintainedBy |
Government of South Korea
ⓘ
linked to:
South Korean government
|
| orientation | north–south ⓘ |
| regionTraversed | western South Korea ⓘ |
| roadType | national highway ⓘ |
| routeNumber | 21 ⓘ |
| transportMode | road transport ⓘ |
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: National Route 21 (South Korea) Description of subject: National Route 21 (South Korea) is a major national highway that runs north–south through western South Korea, connecting cities such as Cheonan with other key regional centers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.