Keisei Access Express
E727969
Keisei Access Express is a limited express train service in the Greater Tokyo area that provides fast, direct rail connections between central Tokyo and Narita Airport.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Keisei Access Express canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8363241 — 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: Keisei Access Express Context triple: [Narita Airport Terminal 1 Station, servedByService, Keisei Access Express]
-
A.
Keisei Skyliner
Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
-
B.
Tsukuba Express
Tsukuba Express is a high-speed commuter railway line in Japan connecting central Tokyo with the city of Tsukuba in Ibaraki Prefecture.
-
C.
Rokkō Liner
Rokkō Liner is an automated guideway transit line in Kobe, Japan, connecting the artificial island of Rokkō Island with the mainland.
-
D.
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.
-
E.
Keiō New Line
The Keiō New Line is a commuter railway line in Tokyo, Japan, operated by Keio Corporation and serving as an underground extension of the main Keio Line into central 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: Keisei Access Express Target entity description: Keisei Access Express is a limited express train service in the Greater Tokyo area that provides fast, direct rail connections between central Tokyo and Narita Airport.
-
A.
Keisei Skyliner
Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
-
B.
Tsukuba Express
Tsukuba Express is a high-speed commuter railway line in Japan connecting central Tokyo with the city of Tsukuba in Ibaraki Prefecture.
-
C.
Rokkō Liner
Rokkō Liner is an automated guideway transit line in Kobe, Japan, connecting the artificial island of Rokkō Island with the mainland.
-
D.
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.
-
E.
Keiō New Line
The Keiō New Line is a commuter railway line in Tokyo, Japan, operated by Keio Corporation and serving as an underground extension of the main Keio Line into central Tokyo.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
airport rail link
ⓘ
limited express train service ⓘ |
| brandingLanguage |
English
ⓘ
Japanese ⓘ |
| connectsTo |
Narita International Airport
ⓘ
central Tokyo ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareType | no limited express surcharge required ⓘ |
| opened | 2010 ⓘ |
| operator | Keisei Electric Railway ⓘ |
| primaryTerminus |
Haneda Airport Domestic Terminal Station
ⓘ
linked to:
Haneda Airport Terminal 1·2 Station
Haneda Airport International Terminal Station ⓘ
linked to:
Haneda Airport Terminal 3 Station
Keisei Ueno Station NERFINISHED ⓘ Narita Airport Terminal 1 Station ⓘ Narita Airport Terminal 2·3 Station ⓘ Nishi-Magome Station NERFINISHED ⓘ |
| purpose | fast access between Tokyo and Narita Airport ⓘ |
| railwayLineUsed |
Keikyu Main Line
ⓘ
linked to:
Keikyū Main Line
Keisei Main Line ⓘ Keisei Narita Sky Access Line ⓘ
linked to:
Narita Sky Access Line
Toei Asakusa Line ⓘ |
| region | Kantō region ⓘ |
| relatedService |
Skyliner
ⓘ
linked to:
Keisei Skyliner
|
| rollingStockUsed |
Keikyu 600 series
ⓘ
linked to:
Keikyu 600 series EMU
Keikyu N1000 series ⓘ
linked to:
Keikyu 1000 series EMU
Keisei 3000 series ⓘ
linked to:
Keisei 3000 series EMU
Keisei 3050 series ⓘ
linked to:
Keisei 3000 series EMU
Toei 5300 series ⓘ
linked to:
Toei 5300 series EMU
|
| routeCharacteristic | uses Narita Sky Access Line for higher speeds ⓘ |
| servesArea |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
|
| serviceClass | all-reserved seats not required ⓘ |
| serviceFrequency | multiple trains per hour at peak times ⓘ |
| servicePattern | airport access ⓘ |
| serviceType | through service ⓘ |
| trackGauge | 1,435 mm standard 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: Keisei Access Express Description of subject: Keisei Access Express is a limited express train service in the Greater Tokyo area that provides fast, direct rail connections between central Tokyo and Narita Airport.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.