Tohoku Expressway
E275265
The Tohoku Expressway is a major Japanese toll highway that runs north from the Tokyo area through several prefectures toward the Tohoku region, serving as one of the country’s primary north–south transportation arteries.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tōhoku Expressway | 6 |
| Tohoku Expressway canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2327819 — 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: Tohoku Expressway Context triple: [Saitama Prefecture, hasExpressway, Tohoku Expressway]
-
A.
Higashi-Kanto Expressway
The Higashi-Kanto Expressway is a major Japanese expressway in the Kanto region that connects the Tokyo area with Chiba Prefecture and serves as a key route to Narita International Airport.
-
B.
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.
-
C.
Hokuriku Expressway
The Hokuriku Expressway is a major Japanese expressway running along the Sea of Japan coast, linking the Hokuriku region with central and western Honshu.
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D.
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.
-
E.
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.
- 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: Tohoku Expressway Target entity description: The Tohoku Expressway is a major Japanese toll highway that runs north from the Tokyo area through several prefectures toward the Tohoku region, serving as one of the country’s primary north–south transportation arteries.
-
A.
Higashi-Kanto Expressway
The Higashi-Kanto Expressway is a major Japanese expressway in the Kanto region that connects the Tokyo area with Chiba Prefecture and serves as a key route to Narita International Airport.
-
B.
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.
-
C.
Hokuriku Expressway
The Hokuriku Expressway is a major Japanese expressway running along the Sea of Japan coast, linking the Hokuriku region with central and western Honshu.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
expressway
ⓘ
highway in Japan ⓘ toll road ⓘ |
| connectsRegion |
Northern Honshu
ⓘ
linked to:
East Japan
Tokyo area ⓘ
linked to:
Tokyo metropolitan area
|
| connectsTo |
Aomori
NERFINISHED
ⓘ
Tokyo metropolitan area ⓘ |
| country | Japan ⓘ |
| direction | north–south ⓘ |
| endingCity | Aomori NERFINISHED ⓘ |
| endingPoint | Aomori Interchange ⓘ |
| endingPrefecture | Aomori Prefecture NERFINISHED ⓘ |
| hasJunctionWith |
Aomori Expressway
ⓘ
Hachinohe Expressway ⓘ Jōban Expressway ⓘ Kan-Etsu Expressway ⓘ Kita-Kantō Expressway ⓘ |
| hasParkingArea | multiple parking areas along route ⓘ |
| hasServiceArea |
Abukuma Service Area
ⓘ
Morioka Service Area ⓘ Nasu Service Area ⓘ Sano Service Area ⓘ Sukagawa Service Area ⓘ |
| hasSpeedLimit | typically 100 km/h on many sections ⓘ |
| laneConfiguration | dual carriageway on most sections ⓘ |
| languageOfOfficialName | Japanese ⓘ |
| locatedOnIsland | Honshu ⓘ |
| maintainedBy | East Nippon Expressway Company ⓘ |
| managedBy |
NEXCO East Japan
ⓘ
linked to:
East Nippon Expressway Company
|
| openedInStages | true ⓘ |
| operator | East Nippon Expressway Company ⓘ |
| partOfNetwork | national expressway network of Japan ⓘ |
| passesThroughPrefecture |
Aomori Prefecture
NERFINISHED
ⓘ
Fukushima Prefecture NERFINISHED ⓘ Iwate Prefecture NERFINISHED ⓘ Miyagi Prefecture NERFINISHED ⓘ Saitama Prefecture NERFINISHED ⓘ Tochigi Prefecture NERFINISHED ⓘ |
| regionServed |
Kantō region
ⓘ
Tōhoku region ⓘ
linked to:
Tohoku
|
| roadStandard | controlled-access highway ⓘ |
| servesAs | primary north–south transportation artery in eastern Japan ⓘ |
| startingCity | Kawaguchi ⓘ |
| startingPoint | Kawaguchi Junction NERFINISHED ⓘ |
| startingPrefecture | Saitama Prefecture NERFINISHED ⓘ |
| toll | yes ⓘ |
| usedFor |
freight transport
ⓘ
long-distance passenger transport ⓘ |
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: Tohoku Expressway Description of subject: The Tohoku Expressway is a major Japanese toll highway that runs north from the Tokyo area through several prefectures toward the Tohoku region, serving as one of the country’s primary north–south transportation arteries.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Saitama Prefecture, Japan
linked to: Tohoku Expressway
linked to: Tohoku Expressway
linked to: Tohoku Expressway
linked to: Tohoku Expressway
linked to: Tohoku Expressway
subject linked to:
Oshu, Iwate, Japan
linked to: Tohoku Expressway