Iida Line
E525826
The Iida Line is a regional railway line in central Japan operated by JR Central, running through mountainous areas of Aichi, Nagano, and Shizuoka Prefectures and connecting various local communities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Iida Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3047641 — 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: Iida Line Context triple: [Toyota City, railwayServedBy, Iida Line]
-
A.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
-
B.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
C.
Yumesaki Line
The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
-
D.
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.
-
E.
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.
- 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: Iida Line Target entity description: The Iida Line is a regional railway line in central Japan operated by JR Central, running through mountainous areas of Aichi, Nagano, and Shizuoka Prefectures and connecting various local communities.
-
A.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
-
B.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
C.
Yumesaki Line
The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connects |
Iida Station
NERFINISHED
ⓘ
Tatsuno Station NERFINISHED ⓘ Toyohashi Station NERFINISHED ⓘ local communities in Aichi Prefecture ⓘ local communities in Nagano Prefecture ⓘ local communities in Shizuoka Prefecture ⓘ |
| country | Japan ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| electrified | true ⓘ |
| gauge | 1067 mm ⓘ |
| hasFunction | connect rural and mountainous areas ⓘ |
| hasLocale | central Japan ⓘ |
| hasOperatorType | JR Group company ⓘ |
| locatedIn |
Aichi Prefecture
NERFINISHED
ⓘ
Honshu ⓘ Nagano Prefecture NERFINISHED ⓘ Shizuoka Prefecture NERFINISHED ⓘ |
| operator |
Central Japan Railway Company
NERFINISHED
ⓘ
JR Central NERFINISHED ⓘ |
| owner | Central Japan Railway Company NERFINISHED ⓘ |
| partOf | JR Central network NERFINISHED ⓘ |
| primaryUse | regional transport ⓘ |
| region | Chūbu region NERFINISHED ⓘ |
| runsThrough | mountainous areas of central Japan ⓘ |
| serviceType |
local train service
ⓘ
passenger rail ⓘ |
| startingPoint | Toyohashi Station NERFINISHED ⓘ |
| status | in operation ⓘ |
| trackGauge | Cape gauge ⓘ |
| uses | conventional rail technology ⓘ |
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: Iida Line Description of subject: The Iida Line is a regional railway line in central Japan operated by JR Central, running through mountainous areas of Aichi, Nagano, and Shizuoka Prefectures and connecting various local communities.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Toyota City