Kotoden (Takamatsu-Kotohira Electric Railroad)
E416060
Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kotoden (Takamatsu-Kotohira Electric Railroad) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4121394 — 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: Kotoden (Takamatsu-Kotohira Electric Railroad) Context triple: [Takamatsu, Kagawa Prefecture, Japan, servedByRailway, Kotoden (Takamatsu-Kotohira Electric Railroad)]
-
A.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
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B.
Nagasaki Electric Tramway
Nagasaki Electric Tramway is a streetcar operator providing one of Japan’s oldest and most iconic tram services throughout the city of Nagasaki.
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C.
Hankai Tramway Co.
Hankai Tramway Co. is a Japanese private railway company that operates historic streetcar and tram services in the Osaka and Sakai areas.
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D.
Kita-Toda Station
Kita-Toda Station is a railway station in Toda, Saitama Prefecture, Japan, operated by JR East.
-
E.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
- 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: Kotoden (Takamatsu-Kotohira Electric Railroad) Target entity description: Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
-
A.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
-
B.
Nagasaki Electric Tramway
Nagasaki Electric Tramway is a streetcar operator providing one of Japan’s oldest and most iconic tram services throughout the city of Nagasaki.
-
C.
Hankai Tramway Co.
Hankai Tramway Co. is a Japanese private railway company that operates historic streetcar and tram services in the Osaka and Sakai areas.
-
D.
Kita-Toda Station
Kita-Toda Station is a railway station in Toda, Saitama Prefecture, Japan, operated by JR East.
-
E.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
private railway operator
ⓘ
public transport operator ⓘ railway company ⓘ |
| connectsTo | JR Shikoku network in Takamatsu ⓘ |
| country | Japan ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| fareSystem | distance-based fare ⓘ |
| hasColorCoding | line color system for each line ⓘ |
| hasDepot |
Kotohira Line depot
ⓘ
Nagao Line depot ⓘ
linked to:
Kotohira Line depot
Shido Line depot ⓘ |
| hasLogo | corporate logo featuring stylized “Koto” motif ⓘ |
| headquartersLocation | Takamatsu, Kagawa Prefecture, Japan ⓘ |
| isPartOf | private railway sector in Japan ⓘ |
| legalStatus | kabushiki gaisha (joint-stock company) ⓘ |
| locatedIn | Kagawa Prefecture ⓘ |
| nativeName | 高松琴平電気鉄道株式会社 ⓘ |
| nativeNameLanguage | ja ⓘ |
| networkCenter | Takamatsu-Chikkō Station ⓘ |
| networkType |
commuter rail
ⓘ
regional rail ⓘ |
| operatesInCity | Takamatsu ⓘ |
| operatesInPrefecture | Kagawa Prefecture ⓘ |
| operatesMode | railway ⓘ |
| ownsLine |
Kotohira Line
ⓘ
Nagao Line ⓘ
linked to:
Kotohira Line
Shido Line ⓘ |
| primaryHub | Takamatsu-Chikkō Station ⓘ |
| primaryUse | commuter transport for Takamatsu urban area ⓘ |
| railGauge | 1067 mm ⓘ |
| regionServed |
Sanuki Plain
ⓘ
eastern Kagawa Prefecture ⓘ |
| rollingStockOrigin |
former Keio Corporation EMUs
ⓘ
former Kotoden-built EMUs ⓘ former Nagoya Railroad EMUs ⓘ |
| safetySystem | automatic train stop (ATS) ⓘ |
| secondaryUse | access to Kotohira and tourist sites ⓘ |
| serviceFrequency | high frequency in urban sections during peak hours ⓘ |
| servicePattern |
all-stations local trains
ⓘ
limited-stop services at peak times ⓘ |
| serviceType | passenger transport ⓘ |
| shortName | Kotoden ⓘ |
| ticketing |
IC card compatibility (IruCa)
ⓘ
magnetic tickets ⓘ |
| trackOwnership | owns its infrastructure ⓘ |
| websiteLanguage | Japanese ⓘ |
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: Kotoden (Takamatsu-Kotohira Electric Railroad) Description of subject: Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Takamatsu, Kagawa Prefecture, Japan
→
servedByRailway
→
Kotoden (Takamatsu-Kotohira Electric Railroad)
ⓘ