JR Tōzai Line
E353685
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
All labels observed (3)
| Label | Occurrences |
|---|---|
| JR Tōzai Line canonical | 6 |
| JR Tozai Line | 2 |
| JR Tōzai–Gakkentoshi Line through services | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2480151 — 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 Tōzai Line Context triple: [Amagasaki Station, servedByLine, JR Tōzai Line]
-
A.
JR Chuo-Sobu Line
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
-
B.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
C.
JR Yamanote Line
The JR Yamanote Line is a busy circular railway loop in central Tokyo that connects many of the city’s major urban hubs and transit interchanges.
-
D.
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.
-
E.
JR Shonan–Shinjuku Line
The JR Shonan–Shinjuku Line is a major Japan Railways commuter and intercity rail service that links the Shōnan area and Saitama via central Tokyo, providing through-running connections across multiple existing lines.
- 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 Tōzai Line Target entity description: The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
-
A.
JR Chuo-Sobu Line
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
-
B.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
C.
JR Yamanote Line
The JR Yamanote Line is a busy circular railway loop in central Tokyo that connects many of the city’s major urban hubs and transit interchanges.
-
D.
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.
-
E.
JR Shonan–Shinjuku Line
The JR Shonan–Shinjuku Line is a major Japan Railways commuter and intercity rail service that links the Shōnan area and Saitama via central Tokyo, providing through-running connections across multiple existing lines.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| connectsCity | Osaka ⓘ |
| connectsPrefecture |
Hyōgo Prefecture
NERFINISHED
ⓘ
Osaka Prefecture ⓘ |
| connectsWith |
Gakkentoshi Line
NERFINISHED
ⓘ
JR Kyoto Line ⓘ
surface form:
JR Kyōto Line
JR Kobe Line ⓘ
surface form:
JR Kōbe Line
JR Takarazuka Line ⓘ JR Tōzai Line self-linksurface differs ⓘ
surface form:
JR Tōzai–Gakkentoshi Line through services
Katamachi Line NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| hasAbbreviation | JR Tōzai NERFINISHED ⓘ |
| hasStation |
Amagasaki Station
NERFINISHED
ⓘ
Ebie Station ⓘ Kitashinchi Station NERFINISHED ⓘ Kyōbashi Station NERFINISHED ⓘ Osaka-jō-kitazume Station NERFINISHED ⓘ Shin-Fukushima Station NERFINISHED ⓘ Ōsakatemmangū Station NERFINISHED ⓘ |
| hasThroughServicesWith |
Gakkentoshi Line
NERFINISHED
ⓘ
JR Takarazuka Line ⓘ |
| lineColor | blue ⓘ |
| lineLength | approximately 12.5 km ⓘ |
| lineNumber | H ⓘ |
| lineType | underground and suburban railway ⓘ |
| locatedIn |
Japan
ⓘ
Kansai region ⓘ |
| numberOfTracks | 2 ⓘ |
| opened | 1997 ⓘ |
| openingDate | March 8, 1997 ⓘ |
| operator |
JR West
ⓘ
West Japan Railway Company ⓘ |
| owner | West Japan Railway Company ⓘ |
| partOfNetwork | JR West Urban Network ⓘ |
| passesThrough | central Osaka ⓘ |
| primaryUse | commuter traffic ⓘ |
| railGauge | 1067 mm ⓘ |
| regionServed |
Greater Kyoto–Osaka metropolitan area
ⓘ
surface form:
Keihanshin metropolitan area
|
| safetySystem |
ATS-P
ⓘ
ATS-SW ⓘ |
| servesCity |
Amagasaki
NERFINISHED
ⓘ
Osaka ⓘ |
| serviceType | commuter rail ⓘ |
| terminusStation |
Amagasaki Station
NERFINISHED
ⓘ
Kyōbashi Station NERFINISHED ⓘ |
| 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: JR Tōzai Line Description of subject: The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
JR Tozai Line
this entity surface form:
JR Tozai Line
this entity surface form:
JR Tōzai–Gakkentoshi Line through services