Tohoku Electric Power (Yurtec)
E786559
Tohoku Electric Power (Yurtec) is a major Japanese electric utility company serving the Tohoku region and acting as the naming sponsor for Yurtec Stadium Sendai.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Tohoku Electric Power | 2 |
| Tohoku Electric Power (Yurtec) canonical | 1 |
| Tohoku Electric Power grid | 1 |
| Yurtec (Tohoku Electric Power Group IT subsidiary) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9249147 — 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 Electric Power (Yurtec) Context triple: [Yurtec Stadium Sendai, namedAfter, Tohoku Electric Power (Yurtec)]
-
A.
Tokyo Electric Power Company
Tokyo Electric Power Company is Japan’s largest electric utility, internationally known for operating the Fukushima Daiichi nuclear plant involved in the 2011 nuclear disaster.
-
B.
Tokyo Gas and Electric Industrial Company
Tokyo Gas and Electric Industrial Company was a Japanese industrial firm active in the early 20th century that played a foundational role in the country’s automotive industry, including establishing the company that became Hino Motors.
-
C.
Nippon Electric Company
Nippon Electric Company, now known as NEC Corporation, is a major Japanese multinational provider of information technology and electronics solutions.
-
D.
Keikyu Corporation
Keikyu Corporation is a major private railway operator in the Greater Tokyo area, best known for its commuter and airport rail services connecting central Tokyo with Haneda Airport and the Miura Peninsula.
-
E.
Engie
Engie is a major French multinational utility company specializing in electricity, natural gas, and energy services, with a strong focus on renewable and low-carbon energy solutions.
- 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 Electric Power (Yurtec) Target entity description: Tohoku Electric Power (Yurtec) is a major Japanese electric utility company serving the Tohoku region and acting as the naming sponsor for Yurtec Stadium Sendai.
-
A.
Tokyo Electric Power Company
Tokyo Electric Power Company is Japan’s largest electric utility, internationally known for operating the Fukushima Daiichi nuclear plant involved in the 2011 nuclear disaster.
-
B.
Tokyo Gas and Electric Industrial Company
Tokyo Gas and Electric Industrial Company was a Japanese industrial firm active in the early 20th century that played a foundational role in the country’s automotive industry, including establishing the company that became Hino Motors.
-
C.
Nippon Electric Company
Nippon Electric Company, now known as NEC Corporation, is a major Japanese multinational provider of information technology and electronics solutions.
-
D.
Keikyu Corporation
Keikyu Corporation is a major private railway operator in the Greater Tokyo area, best known for its commuter and airport rail services connecting central Tokyo with Haneda Airport and the Miura Peninsula.
-
E.
Engie
Engie is a major French multinational utility company specializing in electricity, natural gas, and energy services, with a strong focus on renewable and low-carbon energy solutions.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese company
ⓘ
electric utility company ⓘ football stadium ⓘ public company ⓘ |
| alsoKnownAs | Yurtec ⓘ |
| businessArea |
electricity distribution
ⓘ
electricity generation ⓘ electricity transmission ⓘ |
| country | Japan ⓘ |
| hasAbbreviation | Tohoku EPCO ⓘ |
| hasNamingRightsBrand | Yurtec ⓘ |
| headquartersLocation |
Sendai, Miyagi Prefecture, Japan
ⓘ
linked to:
Sendai, Miyagi, Japan
|
| industry | electric power industry ⓘ |
| languageOfName | Japanese ⓘ |
| location |
Sendai, Miyagi Prefecture, Japan
ⓘ
linked to:
Sendai, Miyagi, Japan
|
| market |
retail electricity supply
ⓘ
wholesale electricity supply ⓘ |
| namingRightsHolderOf | Yurtec Stadium Sendai ⓘ |
| namingRightsSponsor |
Tohoku Electric Power
ⓘ
linked to:
Tohoku Electric Power (Yurtec)
|
| operatesIn | Japan ⓘ |
| regionServed |
Akita Prefecture
ⓘ
Aomori Prefecture ⓘ Fukushima Prefecture ⓘ Iwate Prefecture ⓘ Miyagi Prefecture ⓘ Niigata Prefecture ⓘ Yamagata Prefecture NERFINISHED ⓘ |
| serves |
Tohoku region
ⓘ
linked to:
Tohoku
|
| sponsorOf | Yurtec Stadium Sendai ⓘ |
| type | regional electric power company ⓘ |
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 Electric Power (Yurtec) Description of subject: Tohoku Electric Power (Yurtec) is a major Japanese electric utility company serving the Tohoku region and acting as the naming sponsor for Yurtec Stadium Sendai.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tohoku Electric Power (Yurtec)
linked to: Tohoku Electric Power (Yurtec)
subject linked to:
Tohoku Electric Power (Yurtec)
linked to: Tohoku Electric Power (Yurtec)
subject linked to:
Sendai Stadium
linked to: Tohoku Electric Power (Yurtec)