Tokyu 5050 series
E135605
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Tokyu 5050 series canonical | 4 |
| Tokyu 5050-4000 series | 3 |
| Tokyu 5000 series (2nd generation) | 1 |
| Tokyu 5050 series 4000 series 10-car sets | 1 |
| Tokyu 5050 series 4000 subseries | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1102263 — 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: Tokyu 5050 series Context triple: [Tokyo Metro Fukutoshin Line, rollingStock, Tokyu 5050 series]
-
A.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
-
B.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
-
C.
Seibu 6000 series
The Seibu 6000 series is a Japanese electric multiple unit train type operated by Seibu Railway, commonly used for through-services on Tokyo subway lines.
-
D.
Tobu 9000 series
The Tobu 9000 series is a Japanese electric multiple unit train type operated by Tobu Railway, commonly used for inter-running services with Tokyo Metro lines in the Tokyo metropolitan area.
-
E.
E233 series EMU
The E233 series EMU is a modern Japanese commuter train type operated by JR East, known for its high capacity, reliability, and widespread use on busy urban and suburban lines around Tokyo.
- 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: Tokyu 5050 series Target entity description: The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
-
A.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
-
B.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
-
C.
Seibu 6000 series
The Seibu 6000 series is a Japanese electric multiple unit train type operated by Seibu Railway, commonly used for through-services on Tokyo subway lines.
-
D.
Tobu 9000 series
The Tobu 9000 series is a Japanese electric multiple unit train type operated by Tobu Railway, commonly used for inter-running services with Tokyo Metro lines in the Tokyo metropolitan area.
-
E.
E233 series EMU
The E233 series EMU is a modern Japanese commuter train type operated by JR East, known for its high capacity, reliability, and widespread use on busy urban and suburban lines around Tokyo.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
commuter train ⓘ electric multiple unit ⓘ |
| brakeType |
electronically controlled pneumatic brakes
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| countryOfOrigin | Japan ⓘ |
| designedFor | through-services between private railways and subways ⓘ |
| doorConfiguration | 4 pairs per side per car ⓘ |
| doorType | sliding doors ⓘ |
| electrificationSystem | 1,500 V DC overhead catenary ⓘ |
| family |
Tokyu 5000 series
ⓘ
surface form:
Tokyu 5000 series family
|
| formation |
10-car sets
ⓘ
8-car sets ⓘ |
| hasCabinType | driver-only cab at each end car ⓘ |
| hasSeatingType | longitudinal bench seating ⓘ |
| hasVariant |
Tokyu 5050 series
self-linksurface differs
ⓘ
surface form:
Tokyu 5050 series 4000 series 10-car sets
Tokyu 5050 series self-linksurface differs ⓘ
surface form:
Tokyu 5050 series 4000 subseries
|
| introduced | 2002 ⓘ |
| manufacturer |
J-TREC
ⓘ
Tokyu Car Corporation ⓘ |
| operator |
Tokyu Corporation
ⓘ
Yokohama Minatomirai Railway Minatomirai Line ⓘ
surface form:
Yokohama Minatomirai Railway
|
| powerMethod | electric ⓘ |
| region | Tokyo metropolitan area ⓘ |
| safetySystem |
ATC
ⓘ
ATS ⓘ |
| serviceType | commuter service ⓘ |
| successorTo | older Tokyu commuter EMUs ⓘ |
| throughServiceWith |
Seibu Railway
ⓘ
Tobu Railway ⓘ Tokyo Metro ⓘ |
| trackGauge | 1,067 mm ⓘ |
| traction | VVVF inverter control ⓘ |
| usedInCity | Tokyo ⓘ |
| usedInPrefecture |
Kanagawa Prefecture
NERFINISHED
ⓘ
Saitama Prefecture NERFINISHED ⓘ Tokyo Prefecture ⓘ
surface form:
Tokyo Metropolis
|
| usedOnLine |
Minatomirai Line
ⓘ
Seibu Ikebukuro Line ⓘ Seibu Yurakucho Line ⓘ Sotetsu Shin-Yokohama Line ⓘ Tobu Tojo Line ⓘ Tokyo Metro Fukutoshin Line ⓘ Tokyo Metro Hibiya Line ⓘ Tokyu Den-en-toshi Line ⓘ Tokyu Meguro Line ⓘ Tokyu Shin-Yokohama Line ⓘ Tokyu Toyoko Line ⓘ Yokohama Minatomirai Railway Minatomirai Line ⓘ |
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: Tokyu 5050 series Description of subject: The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tokyu 5000 series (2nd generation)
this entity surface form:
Tokyu 5050-4000 series
this entity surface form:
Tokyu 5050 series 4000 subseries
this entity surface form:
Tokyu 5050 series 4000 series 10-car sets
this entity surface form:
Tokyu 5050-4000 series
this entity surface form:
Tokyu 5050-4000 series