Obama Line
E864341
The Obama Line is a regional railway line in Japan’s Kansai region that connects coastal towns along Wakasa Bay, including Maizuru, providing local passenger rail services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Obama Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10455741 — 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: Obama Line Context triple: [Maizuru, servedByRailwayLine, Obama Line]
-
A.
Barack Obama presidency
The Barack Obama presidency was the two-term administration of the 44th President of the United States, marked by the Affordable Care Act, the recovery from the Great Recession, and a foreign policy emphasizing multilateralism and the killing of Osama bin Laden.
-
B.
Barack Obama
Barack Obama is an American politician and attorney who served as the 44th president of the United States and the first African American to hold the office.
-
C.
Bush Key
Bush Key is a small, uninhabited island in the Dry Tortugas known for its important seabird nesting colonies and protected natural habitat.
-
D.
Clinton
Clinton is a small New England town in Worcester County, Massachusetts, known historically for its textile mills and the nearby Wachusett Reservoir.
-
E.
Clinton
Clinton, also known as Hell's Kitchen, is a vibrant New York City neighborhood on Manhattan’s West Side known for its diverse dining, Off-Broadway theaters, and proximity to Midtown.
- 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: Obama Line Target entity description: The Obama Line is a regional railway line in Japan’s Kansai region that connects coastal towns along Wakasa Bay, including Maizuru, providing local passenger rail services.
-
A.
Barack Obama presidency
The Barack Obama presidency was the two-term administration of the 44th President of the United States, marked by the Affordable Care Act, the recovery from the Great Recession, and a foreign policy emphasizing multilateralism and the killing of Osama bin Laden.
-
B.
Barack Obama
Barack Obama is an American politician and attorney who served as the 44th president of the United States and the first African American to hold the office.
-
C.
Bush Key
Bush Key is a small, uninhabited island in the Dry Tortugas known for its important seabird nesting colonies and protected natural habitat.
-
D.
Clinton
Clinton is a small New England town in Worcester County, Massachusetts, known historically for its textile mills and the nearby Wachusett Reservoir.
-
E.
Clinton
Clinton, also known as Hell's Kitchen, is a vibrant New York City neighborhood on Manhattan’s West Side known for its diverse dining, Off-Broadway theaters, and proximity to Midtown.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connectsTo | Maizuru NERFINISHED ⓘ |
| connectsWith |
Hokuriku Main Line
NERFINISHED
ⓘ
Maizuru Line NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | none ⓘ |
| followsCoastOf | Wakasa Bay NERFINISHED ⓘ |
| gauge | 1067 mm ⓘ |
| hasLocale | Sea of Japan coast NERFINISHED ⓘ |
| hasRollingStockType | diesel multiple units ⓘ |
| hasServiceFrequency | relatively low frequency rural service ⓘ |
| hasServicePattern | all-stations local trains ⓘ |
| locatedIn |
Fukui Prefecture
NERFINISHED
ⓘ
Honshu ⓘ Kansai region ⓘ Kyoto Prefecture ⓘ Wakasa region NERFINISHED ⓘ |
| operator |
JR West
NERFINISHED
ⓘ
West Japan Railway Company NERFINISHED ⓘ |
| primaryUse |
commuter transport
ⓘ
regional access ⓘ school commuting ⓘ |
| providesServiceType | local passenger rail services ⓘ |
| railwaySystem | JR West urban and regional network ⓘ |
| regionServed | coastal towns along Wakasa Bay ⓘ |
| terminus |
Higashi-Maizuru Station
NERFINISHED
ⓘ
Tsuruga Station NERFINISHED ⓘ |
| trackConfiguration | single track ⓘ |
| trackGauge | Cape gauge ⓘ |
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: Obama Line Description of subject: The Obama Line is a regional railway line in Japan’s Kansai region that connects coastal towns along Wakasa Bay, including Maizuru, providing local passenger rail services.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Maizuru