Tokyo Bay Aqua-Line
E148519
Tokyo Bay Aqua-Line is a combined bridge–tunnel expressway route in Japan that spans Tokyo Bay, connecting Kawasaki in Kanagawa Prefecture with Kisarazu in Chiba Prefecture.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Tokyo Bay Aqua-Line canonical | 11 |
| Tokyo Bay Aqua-Line Expressway | 2 |
| Tokyo Bay Aqua-Line Tunnel | 1 |
| Tokyo Bay Aqua-Line tunnel–bridge system | 1 |
| Tokyo Bay Tunnel | 1 |
| Tokyo Wan Aqua-Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1279078 — 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: Tokyo Bay Aqua-Line Context triple: [Tokyo Bay, crossedBy, Tokyo Bay Aqua-Line]
-
A.
Seto Ohashi Bridge system
The Seto Ohashi Bridge system is a series of double-deck road-and-rail suspension and cable-stayed bridges in Japan that spans the Seto Inland Sea, linking the islands of Honshu and Shikoku.
-
B.
Nijūbashi Bridge
Nijūbashi Bridge is a famous pair of arched bridges at the main entrance to Tokyo’s Imperial Palace, known as one of Japan’s most iconic and photographed landmarks.
-
C.
Osaka Monorail
Osaka Monorail is a straddle-beam monorail system in Osaka Prefecture, Japan, serving as a major urban transit line linking key suburbs, commercial areas, and transport hubs.
-
D.
Central Subway
Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
-
E.
Shimanami Kaido
Shimanami Kaido is a scenic expressway and cycling route in Japan that spans a series of bridges and islands across the Seto Inland Sea, linking the islands of Honshu and Shikoku.
- 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: Tokyo Bay Aqua-Line Target entity description: Tokyo Bay Aqua-Line is a combined bridge–tunnel expressway route in Japan that spans Tokyo Bay, connecting Kawasaki in Kanagawa Prefecture with Kisarazu in Chiba Prefecture.
-
A.
Seto Ohashi Bridge system
The Seto Ohashi Bridge system is a series of double-deck road-and-rail suspension and cable-stayed bridges in Japan that spans the Seto Inland Sea, linking the islands of Honshu and Shikoku.
-
B.
Nijūbashi Bridge
Nijūbashi Bridge is a famous pair of arched bridges at the main entrance to Tokyo’s Imperial Palace, known as one of Japan’s most iconic and photographed landmarks.
-
C.
Osaka Monorail
Osaka Monorail is a straddle-beam monorail system in Osaka Prefecture, Japan, serving as a major urban transit line linking key suburbs, commercial areas, and transport hubs.
-
D.
Central Subway
Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
-
E.
Shimanami Kaido
Shimanami Kaido is a scenic expressway and cycling route in Japan that spans a series of bridges and islands across the Seto Inland Sea, linking the islands of Honshu and Shikoku.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
bridge–tunnel system
ⓘ
expressway ⓘ transport infrastructure ⓘ |
| bridgeLengthApproxKm | 4.4 ⓘ |
| bridgeName | Aqua-Line Bridge ⓘ |
| connects |
Kawasaki
ⓘ
Kisarazu ⓘ |
| connectsCity |
Kawasaki City
ⓘ
Kisarazu City ⓘ |
| constructionStart | 1989 ⓘ |
| country | Japan ⓘ |
| crosses | Tokyo Bay ⓘ |
| hasArtificialIsland | Umihotaru ⓘ |
| hasComponent |
bridge
ⓘ
tunnel ⓘ |
| hasLaneCount | 4 ⓘ |
| hasServiceArea | Umihotaru Parking Area ⓘ |
| hasStructureType |
immersed tube tunnel
ⓘ
viaduct bridge ⓘ |
| hasTollPlaza |
Kawasaki-side toll plaza
ⓘ
Kisarazu-side toll plaza ⓘ |
| japaneseName | 東京湾アクアライン ⓘ |
| lengthApproxKm | 15.1 ⓘ |
| locatedIn | Tokyo Bay ⓘ |
| locatedInPrefecture |
Chiba Prefecture
NERFINISHED
ⓘ
Kanagawa Prefecture NERFINISHED ⓘ |
| maintainedBy | East Nippon Expressway Company ⓘ |
| notableFeature | includes an artificial island service area in the middle of Tokyo Bay ⓘ |
| officialName |
Tokyo Bay Aqua-Line
self-linksurface differs
ⓘ
surface form:
Tokyo Wan Aqua-Line
|
| opened | 1997 ⓘ |
| openingDate | 1997-12-18 ⓘ |
| operator | East Nippon Expressway Company ⓘ |
| partOf |
Tokyo Bay Aqua-Line
self-linksurface differs
ⓘ
surface form:
Tokyo Bay Aqua-Line Expressway
|
| partOfNetwork | Shuto Expressway and national expressway network ⓘ |
| purpose | road transport ⓘ |
| region | Kantō region ⓘ |
| roadType | expressway route ⓘ |
| shortensTravelBetween | Kanagawa Prefecture and Chiba Prefecture ⓘ |
| tollRoad | yes ⓘ |
| tunnelLengthApproxKm | 9.6 ⓘ |
| tunnelName |
Tokyo Bay Aqua-Line
self-linksurface differs
ⓘ
surface form:
Tokyo Bay Tunnel
|
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: Tokyo Bay Aqua-Line Description of subject: Tokyo Bay Aqua-Line is a combined bridge–tunnel expressway route in Japan that spans Tokyo Bay, connecting Kawasaki in Kanagawa Prefecture with Kisarazu in Chiba Prefecture.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Boso Peninsula
this entity surface form:
Tokyo Bay Aqua-Line tunnel–bridge system
this entity surface form:
Tokyo Bay Aqua-Line Expressway
this entity surface form:
Tokyo Bay Aqua-Line Expressway
this entity surface form:
Tokyo Wan Aqua-Line
this entity surface form:
Tokyo Bay Tunnel
this entity surface form:
Tokyo Bay Aqua-Line Tunnel