Ōme Line
E692590
The Ōme Line is a railway line in western Tokyo, Japan, operated by JR East, connecting the city’s suburban and mountainous areas to the central rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ōme Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5935535 — 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: Ōme Line Context triple: [JR East urban network, hasLine, Ōme Line]
-
A.
Seto-Ōhashi Line
The Seto-Ōhashi Line is a railway route in Japan that connects Honshu and Shikoku across the Seto Inland Sea, forming the rail link over the Great Seto Bridge system.
-
B.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Uchibō Line
The Uchibō Line is a coastal railway route in Chiba Prefecture, Japan, operated by JR East and known for connecting Tokyo’s outskirts with towns along the western side of the Bōsō Peninsula.
-
E.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
- 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: Ōme Line Target entity description: The Ōme Line is a railway line in western Tokyo, Japan, operated by JR East, connecting the city’s suburban and mountainous areas to the central rail network.
-
A.
Seto-Ōhashi Line
The Seto-Ōhashi Line is a railway route in Japan that connects Honshu and Shikoku across the Seto Inland Sea, forming the rail link over the Great Seto Bridge system.
-
B.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Uchibō Line
The Uchibō Line is a coastal railway route in Chiba Prefecture, Japan, operated by JR East and known for connecting Tokyo’s outskirts with towns along the western side of the Bōsō Peninsula.
-
E.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line ⓘ |
| connectsAreaType |
central rail network
ⓘ
mountainous areas ⓘ suburban areas ⓘ |
| connectsCity |
Tachikawa
NERFINISHED
ⓘ
Ōme NERFINISHED ⓘ |
| connectsTo | Chūō Line (Rapid) NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| formerOperator | Japanese National Railways NERFINISHED ⓘ |
| hasFareSystem | JR East fare system ⓘ |
| hasJapaneseName | 青梅線 ⓘ |
| hasMapSymbol | JRC line symbol used by JR East ⓘ |
| hasRollingStockType |
E233 series EMU
NERFINISHED
ⓘ
E353 series EMU (for through services via Chūō Line) NERFINISHED ⓘ |
| hasServiceFrequency |
high frequency in peak hours
ⓘ
regular interval off-peak services ⓘ |
| hasServicePattern |
direct trains to central Tokyo
ⓘ
through services to Chūō Line (Rapid) ⓘ |
| hasStationAreaCharacteristic |
mountain foothill towns
ⓘ
residential suburbs ⓘ |
| infrastructureType |
double track (on most sections)
ⓘ
single track (on some sections) ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Tokyo
ⓘ
western Tokyo ⓘ |
| locatedInPrefecture | Tokyo Metropolis NERFINISHED ⓘ |
| operator |
East Japan Railway Company
NERFINISHED
ⓘ
JR East NERFINISHED ⓘ |
| owner | East Japan Railway Company NERFINISHED ⓘ |
| partOfNetwork | JR East Tokyo metropolitan rail network NERFINISHED ⓘ |
| primaryFunction |
access to Okutama region (via connecting lines and services)
ⓘ
commuter transport ⓘ |
| railwayCompanyAfterJNRPrivatization | JR East NERFINISHED ⓘ |
| railwaySignColor | blue (JR East route color) ⓘ |
| railwaySystem | JR East urban network NERFINISHED ⓘ |
| regionServed | Tama area ⓘ |
| safetySystem | ATS (Automatic Train Stop) NERFINISHED ⓘ |
| serviceType |
local
ⓘ
rapid ⓘ |
| status | in operation ⓘ |
| terminus |
Tachikawa Station
NERFINISHED
ⓘ
Ōme Station NERFINISHED ⓘ |
| ticketing | IC cards such as Suica accepted ⓘ |
| 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: Ōme Line Description of subject: The Ōme Line is a railway line in western Tokyo, Japan, operated by JR East, connecting the city’s suburban and mountainous areas to the central rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.