Joban Expressway
E277716
The Jōban Expressway is a major Japanese expressway running along the Pacific coast of Honshu, connecting the Tokyo area with the Tōhoku region and serving as an important transportation corridor for both passenger and freight traffic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Joban Expressway canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2327820 — 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: Joban Expressway Context triple: [Saitama Prefecture, hasExpressway, Joban Expressway]
-
A.
Maju Expressway
Maju Expressway is a major Malaysian highway that provides a fast, direct route between Kuala Lumpur and the administrative capital Putrajaya.
-
B.
Shin-Meishin Expressway
The Shin-Meishin Expressway is a major Japanese expressway that serves as an alternative and bypass route to the original Meishin Expressway, helping to alleviate congestion in the Kansai region.
-
C.
Kan-Etsu Expressway
The Kan-Etsu Expressway is a major Japanese expressway connecting the Tokyo metropolitan area with Gunma and Niigata Prefectures, serving as a key route to the Sea of Japan coast and popular ski and hot spring regions.
-
D.
Tōmei Expressway
The Tōmei Expressway is a major Japanese expressway connecting Tokyo and Nagoya, serving as a key artery for traffic and freight along the Pacific coast of Honshu.
-
E.
Nishi-Meihan Expressway
Nishi-Meihan Expressway is a major expressway in Japan’s Kansai region that connects parts of Osaka and Nara Prefectures, serving as an important route for regional traffic and logistics.
- 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: Joban Expressway Target entity description: The Jōban Expressway is a major Japanese expressway running along the Pacific coast of Honshu, connecting the Tokyo area with the Tōhoku region and serving as an important transportation corridor for both passenger and freight traffic.
-
A.
Maju Expressway
Maju Expressway is a major Malaysian highway that provides a fast, direct route between Kuala Lumpur and the administrative capital Putrajaya.
-
B.
Shin-Meishin Expressway
The Shin-Meishin Expressway is a major Japanese expressway that serves as an alternative and bypass route to the original Meishin Expressway, helping to alleviate congestion in the Kansai region.
-
C.
Kan-Etsu Expressway
The Kan-Etsu Expressway is a major Japanese expressway connecting the Tokyo metropolitan area with Gunma and Niigata Prefectures, serving as a key route to the Sea of Japan coast and popular ski and hot spring regions.
-
D.
Tōmei Expressway
The Tōmei Expressway is a major Japanese expressway connecting Tokyo and Nagoya, serving as a key artery for traffic and freight along the Pacific coast of Honshu.
-
E.
Nishi-Meihan Expressway
Nishi-Meihan Expressway is a major expressway in Japan’s Kansai region that connects parts of Osaka and Nara Prefectures, serving as an important route for regional traffic and logistics.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
expressway
ⓘ
toll road ⓘ |
| connectsRegion |
Tohoku
ⓘ
surface form:
Tohoku region
Tokyo metropolitan area ⓘ
surface form:
Tokyo area
|
| country | Japan ⓘ |
| endsNear |
Sendai, Miyagi, Japan
ⓘ
surface form:
Sendai, Miyagi Prefecture
|
| hasAbbreviation | Joban EXPWY ⓘ |
| hasInterchangeType | full access interchanges at major cities ⓘ |
| hasJunctionWith |
Joban Expressway (JCTs between branches and mainline)
ⓘ
Kita-Kantō Expressway ⓘ
surface form:
Kita-Kanto Expressway
Sendai-Tobu Road ⓘ |
| hasLaneConfiguration | dual carriageway on most sections ⓘ |
| hasRouteNumber | E6 ⓘ |
| hasServiceArea |
Abukuma Parking Area
ⓘ
Hitachi, Ibaraki Prefecture, Japan ⓘ
surface form:
Hitachi Service Area
Moriya Service Area ⓘ Naka Service Area ⓘ |
| hasSpeedLimit | typically 100 km/h on many sections ⓘ |
| hasTollSystem | electronic toll collection ⓘ |
| isDesignatedAs | national expressway route E6 ⓘ |
| isMajorCorridorFor |
freight traffic
ⓘ
passenger traffic ⓘ |
| JapaneseName | 常磐自動車道 ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn | Honshu ⓘ |
| maintainedBy | East Nippon Expressway Company ⓘ |
| openedInPart |
1960s
ⓘ
1970s ⓘ 1980s ⓘ 1990s ⓘ 2000s ⓘ 2010s ⓘ |
| partOf |
Japanese national expressway network
ⓘ
surface form:
national expressway network of Japan
|
| partOfNetwork | East Nippon Expressway Company network ⓘ |
| passesThroughPrefecture |
Chiba Prefecture
NERFINISHED
ⓘ
Fukushima Prefecture NERFINISHED ⓘ Ibaraki Prefecture NERFINISHED ⓘ Miyagi Prefecture NERFINISHED ⓘ Saitama Prefecture NERFINISHED ⓘ |
| role | alternative north–south route to Tohoku Expressway along Pacific coast ⓘ |
| runsAlong | Pacific coast of Honshu ⓘ |
| servesCity |
Fukushima
ⓘ
Iwaki ⓘ Mito ⓘ Sendai ⓘ |
| startsNear |
Misato, Saitama Prefecture
ⓘ
Tokyo metropolitan area ⓘ |
| usedFor | evacuation and logistics in disaster response ⓘ |
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: Joban Expressway Description of subject: The Jōban Expressway is a major Japanese expressway running along the Pacific coast of Honshu, connecting the Tokyo area with the Tōhoku region and serving as an important transportation corridor for both passenger and freight traffic.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Saitama Prefecture