Okachimachi Station
E524778
Okachimachi Station is a busy JR East railway station in Tokyo, Japan, serving the Ueno/Ameyoko shopping district and connecting central urban transit lines.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Naka-Okachimachi Station | 1 |
| Okachimachi Station canonical | 1 |
| Okachimachi Station on Yamanote Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1860616 — 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: Okachimachi Station Context triple: [Taitō, hasRailwayStation, Okachimachi Station]
-
A.
Hamamatsuchō Station
Hamamatsuchō Station is a major railway hub in Tokyo’s Minato ward that provides convenient access to central Tokyo, Haneda Airport, and the surrounding bayfront area.
-
B.
Takadanobaba Station
Takadanobaba Station is a major railway hub in Tokyo’s Shinjuku ward, serving multiple lines and providing convenient access to nearby universities and commercial areas.
-
C.
Kichijōji Station
Kichijōji Station is a major railway hub in Tokyo’s Musashino area, serving multiple lines and providing access to the popular Kichijōji shopping and entertainment district as well as Inokashira Park.
-
D.
Keisei Ueno Station
Keisei Ueno Station is a major terminal railway station in Tokyo operated by Keisei Electric Railway, serving as a key access point between central Tokyo and Narita International Airport.
-
E.
Mitakadai Station
Mitakadai Station is a railway station in Tokyo, Japan, operated by Keio Corporation on its Inokashira Line.
- 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: Okachimachi Station Target entity description: Okachimachi Station is a busy JR East railway station in Tokyo, Japan, serving the Ueno/Ameyoko shopping district and connecting central urban transit lines.
-
A.
Hamamatsuchō Station
Hamamatsuchō Station is a major railway hub in Tokyo’s Minato ward that provides convenient access to central Tokyo, Haneda Airport, and the surrounding bayfront area.
-
B.
Takadanobaba Station
Takadanobaba Station is a major railway hub in Tokyo’s Shinjuku ward, serving multiple lines and providing convenient access to nearby universities and commercial areas.
-
C.
Kichijōji Station
Kichijōji Station is a major railway hub in Tokyo’s Musashino area, serving multiple lines and providing access to the popular Kichijōji shopping and entertainment district as well as Inokashira Park.
-
D.
Keisei Ueno Station
Keisei Ueno Station is a major terminal railway station in Tokyo operated by Keisei Electric Railway, serving as a key access point between central Tokyo and Narita International Airport.
-
E.
Mitakadai Station
Mitakadai Station is a railway station in Tokyo, Japan, operated by Keio Corporation on its Inokashira Line.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
JR East station
ⓘ
railway station ⓘ |
| adjacentStationOnKeihinTohokuLine |
Akihabara Station
NERFINISHED
ⓘ
Ueno Station NERFINISHED ⓘ |
| adjacentStationOnYamanoteLine |
Akihabara Station
NERFINISHED
ⓘ
Ueno Station NERFINISHED ⓘ |
| connectedTo |
Naka-okachimachi Station via underground passages
ⓘ
Ueno-hirokoji Station via underground passages ⓘ Ueno-okachimachi Station via underground passages ⓘ |
| country | Japan ⓘ |
| electrification | yes ⓘ |
| fareSystem | IC cards (Suica, PASMO) NERFINISHED ⓘ |
| hasExit |
North Exit
NERFINISHED
ⓘ
South Exit ⓘ |
| hasFacility |
restrooms
ⓘ
station concourse ⓘ ticket gates ⓘ ticket vending machines ⓘ |
| hasService |
local trains
ⓘ
rapid trains (Keihin-Tohoku Line, off-peak) ⓘ |
| locatedIn |
Honshu
ⓘ
Kanto region NERFINISHED ⓘ Taito, Tokyo NERFINISHED ⓘ Tokyo ⓘ Ueno area ⓘ |
| locatedNear |
Ameya-Yokocho market
NERFINISHED
ⓘ
Okachimachi shopping streets ⓘ Ueno Park area ⓘ |
| nearbyStation |
Keisei Ueno Station
NERFINISHED
ⓘ
Naka-okachimachi Station NERFINISHED ⓘ Ueno Station NERFINISHED ⓘ Ueno-hirokoji Station NERFINISHED ⓘ Ueno-okachimachi Station NERFINISHED ⓘ |
| numberOfPlatforms | 2 ⓘ |
| numberOfTracks | 4 ⓘ |
| opened | 1925 ⓘ |
| openingDate | 1925-11-01 ⓘ |
| operator |
East Japan Railway Company
NERFINISHED
ⓘ
JR East NERFINISHED ⓘ |
| owner | East Japan Railway Company NERFINISHED ⓘ |
| passengerUsage | busy urban commuter station ⓘ |
| platformType | island platform ⓘ |
| railwayLine |
Keihin-Tohoku Line
NERFINISHED
ⓘ
Yamanote Line NERFINISHED ⓘ |
| serves |
Ameyoko shopping street
NERFINISHED
ⓘ
Ueno district NERFINISHED ⓘ Ueno/Ameyoko shopping district NERFINISHED ⓘ |
| structureType | elevated station ⓘ |
| style | JR East NERFINISHED ⓘ |
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: Okachimachi Station Description of subject: Okachimachi Station is a busy JR East railway station in Tokyo, Japan, serving the Ueno/Ameyoko shopping district and connecting central urban transit lines.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Naka-Okachimachi Station
this entity surface form:
Okachimachi Station on Yamanote Line