Triple
T15203317
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Eifukuchō Station |
E363320
|
entity |
| Predicate | ownedBy |
P347
|
FINISHED |
| Object | Keio Corporation |
E138695
|
NE FINISHED |
Named-entity recognition
Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Keio Corporation | Statement: [Eifukuchō Station, ownedBy, Keio Corporation]
Disambiguation candidates (1 decision)
The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keio Corporation Context triple: [Eifukuchō Station, ownedBy, Keio Corporation]
-
A.
Keio Corporation
chosen
Keio Corporation is a major Japanese private railway and transportation company operating rail lines and related services in the Tokyo metropolitan area.
-
B.
Tokyu Corporation
Tokyu Corporation is a major Japanese private railway and real estate company based in Tokyo, known for operating extensive rail networks and developing commercial and residential areas, particularly around Shibuya.
-
C.
Koizumi Sangyo Corporation
Koizumi Sangyo Corporation is a Japanese company known for manufacturing and supplying lighting fixtures, electrical equipment, and related industrial products.
-
D.
Taisei Corporation
Taisei Corporation is a major Japanese construction and civil engineering company known for leading large-scale infrastructure and landmark building projects in Japan and abroad.
-
E.
Nippon Kobo
Nippon Kobo was a Japanese design and architecture firm active in the mid-20th century, known for its collaborations with prominent modernist designers such as Charlotte Perriand.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 batches)
| Stage | Batch ID | Job type | Status |
|---|---|---|---|
| creating | batch_69d85a0b78bc8190b6e5ad51a2c4cfc5 |
elicitation | completed |
| NER | batch_69e006b693a48190a6230b7b52bc8cd3 |
ner | completed |
| NED1 | batch_69feef687bdc819090ec8a4e1af9f422 |
ned_source_triple | completed |
Created at: April 10, 2026, 3:10 a.m.