National Route 308
E487493
National Route 308 is a Japanese national highway known for its steep, narrow mountain passes connecting urban areas in Osaka and Nara Prefectures.
All labels observed (1)
| Label | Occurrences |
|---|---|
| National Route 308 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4963929 — 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 308 Context triple: [Higashiosaka, roadAccess, National Route 308]
-
A.
National Route 36
National Route 36 is a major Japanese highway in Hokkaido that connects the cities of Sapporo and Muroran, serving as an important coastal transportation corridor.
-
B.
National Route 32
National Route 32 was a former Australian national highway designation applied to the Great Western Highway corridor in New South Wales.
-
C.
National Route 32
National Route 32 is a major Vietnamese highway that connects Hanoi with several northwestern provinces, serving as an important regional transport corridor.
-
D.
National Route 26
National Route 26 is a major Japanese highway that runs through Osaka Prefecture and connects key cities in the Kansai region.
-
E.
National Route 37
National Route 37 is a major Japanese national highway in Hokkaido that connects the city of Muroran with other key regional destinations along the southwestern coast.
- 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 308 Target entity description: National Route 308 is a Japanese national highway known for its steep, narrow mountain passes connecting urban areas in Osaka and Nara Prefectures.
-
A.
National Route 36
National Route 36 is a major Japanese highway in Hokkaido that connects the cities of Sapporo and Muroran, serving as an important coastal transportation corridor.
-
B.
National Route 32
National Route 32 is a major Vietnamese highway that connects Hanoi with several northwestern provinces, serving as an important regional transport corridor.
-
C.
National Route 32
National Route 32 was a former Australian national highway designation applied to the Great Western Highway corridor in New South Wales.
-
D.
National Route 26
National Route 26 is a major Japanese highway that runs through Osaka Prefecture and connects key cities in the Kansai region.
-
E.
National Route 37
National Route 37 is a major Japanese national highway in Hokkaido that connects the city of Muroran with other key regional destinations along the southwestern coast.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
national highway
ⓘ
road ⓘ |
| accessibleBy |
bicycles
ⓘ
motor vehicles ⓘ motorcycles ⓘ |
| connectsArea |
urban areas in Nara Prefecture
ⓘ
urban areas in Osaka Prefecture ⓘ |
| connectsPrefecture |
Nara Prefecture
NERFINISHED
ⓘ
Osaka Prefecture NERFINISHED ⓘ |
| connectsRegion | Kansai region NERFINISHED ⓘ |
| country | Japan ⓘ |
| hasCategory | National highways of Japan NERFINISHED ⓘ |
| hasLanguageName | Japanese ⓘ |
| hasNotableFeature |
narrow mountain passes
ⓘ
sharp curves ⓘ steep gradients ⓘ |
| hasRoadSection | steep narrow section between Osaka and Nara ⓘ |
| locatedIn | Japan ⓘ |
| locatedInPrefecture |
Nara Prefecture
NERFINISHED
ⓘ
Osaka Prefecture NERFINISHED ⓘ |
| maintainedBy | Government of Japan NERFINISHED ⓘ |
| partOfNetwork | Japanese national highway network ⓘ |
| regulatoryStatus | national highway under Japanese law ⓘ |
| roadNumber | 308 ⓘ |
| roadType | mountain pass road ⓘ |
| safetyConcern | difficult driving conditions due to steep and narrow segments ⓘ |
| terrainType | mountainous ⓘ |
| usedFor |
inter-prefectural road transport
ⓘ
local traffic between Osaka and Nara ⓘ |
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 308 Description of subject: National Route 308 is a Japanese national highway known for its steep, narrow mountain passes connecting urban areas in Osaka and Nara Prefectures.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Higashiosaka