JR East Ōme Line
E339066
The JR East Ōme Line is a railway line in western Tokyo operated by East Japan Railway Company, connecting urban areas with the Tama region and the foothills of the Okutama area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| JR East Ōme Line canonical | 1 |
| Ōme Line (through services) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1742816 — 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: JR East Ōme Line Context triple: [Tama, servedBy, JR East Ōme Line]
-
A.
JR Yumesaki Line
The JR Yumesaki Line is a railway line in Osaka, Japan, operated by JR West that connects central Osaka with the bay area, including major attractions such as Universal Studios Japan.
-
B.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
-
C.
Keio Line
The Keio Line is a major private railway line in Tokyo, Japan, operated by Keio Corporation, connecting central Tokyo with its western suburbs.
-
D.
Yokosuka Line
The Yokosuka Line is a major JR East railway line in the Greater Tokyo area that connects central Tokyo with Yokosuka in Kanagawa Prefecture, serving both commuter and intercity traffic.
-
E.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
- 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: JR East Ōme Line Target entity description: The JR East Ōme Line is a railway line in western Tokyo operated by East Japan Railway Company, connecting urban areas with the Tama region and the foothills of the Okutama area.
-
A.
JR Yumesaki Line
The JR Yumesaki Line is a railway line in Osaka, Japan, operated by JR West that connects central Osaka with the bay area, including major attractions such as Universal Studios Japan.
-
B.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
-
C.
Keio Line
The Keio Line is a major private railway line in Tokyo, Japan, operated by Keio Corporation, connecting central Tokyo with its western suburbs.
-
D.
Yokosuka Line
The Yokosuka Line is a major JR East railway line in the Greater Tokyo area that connects central Tokyo with Yokosuka in Kanagawa Prefecture, serving both commuter and intercity traffic.
-
E.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line ⓘ |
| connectsTo | Chūō Line (Rapid) NERFINISHED ⓘ |
| connectsUrbanAreaWith |
Tama region
ⓘ
foothills of Okutama area ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| hasLocale |
Tokyo Prefecture
ⓘ
surface form:
Tokyo Metropolis
|
| hasOwner |
East Japan Railway Company
ⓘ
surface form:
JR East
|
| hasRollingStockOperator |
East Japan Railway Company
ⓘ
surface form:
JR East
|
| hasServicePattern | through services to Chūō Line (Rapid) ⓘ |
| locatedIn |
Japan
ⓘ
Kantō region ⓘ Tokyo ⓘ |
| operator |
East Japan Railway Company
ⓘ
East Japan Railway Company ⓘ
surface form:
JR East
|
| owner | East Japan Railway Company ⓘ |
| partOfNetwork | JR East network ⓘ |
| primaryUse |
commuter transport
ⓘ
regional transport ⓘ |
| railwaySignalling | automatic signalling ⓘ |
| regionServed |
Okutama area
ⓘ
Tama region ⓘ western Tokyo ⓘ |
| serviceType |
local
ⓘ
rapid ⓘ |
| terminus |
Tachikawa Station
NERFINISHED
ⓘ
Ōme Station NERFINISHED ⓘ |
| trackGauge | 1,067 mm ⓘ |
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: JR East Ōme Line Description of subject: The JR East Ōme Line is a railway line in western Tokyo operated by East Japan Railway Company, connecting urban areas with the Tama region and the foothills of the Okutama area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ōme Line (through services)