Triple
T2565546
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Katahira Campus |
E57341
|
entity |
| Predicate | hasNearbyTransport |
P1288
|
FINISHED |
| Object |
Sendai Subway
Sendai Subway is an urban rapid transit system serving the city of Sendai in Japan, providing key north–south and east–west rail connections across the metropolitan area.
|
E281409
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
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: Sendai Subway | Statement: [Katahira Campus, hasNearbyTransport, Sendai Subway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sendai Subway Context triple: [Katahira Campus, hasNearbyTransport, Sendai Subway]
-
A.
Toei Subway
Toei Subway is one of Tokyo's two main subway networks, operated by the Tokyo Metropolitan Bureau of Transportation and serving numerous urban and suburban areas across the city.
-
B.
Sapporo Municipal Subway
Sapporo Municipal Subway is the rapid transit system serving the city of Sapporo in Hokkaido, Japan, providing urban rail transportation across several key lines and stations.
-
C.
Tokyo Metro
Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
-
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.
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.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Sendai Subway Triple: [Katahira Campus, hasNearbyTransport, Sendai Subway]
Generated description
Sendai Subway is an urban rapid transit system serving the city of Sendai in Japan, providing key north–south and east–west rail connections across the metropolitan area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sendai Subway Target entity description: Sendai Subway is an urban rapid transit system serving the city of Sendai in Japan, providing key north–south and east–west rail connections across the metropolitan area.
-
A.
Toei Subway
Toei Subway is one of Tokyo's two main subway networks, operated by the Tokyo Metropolitan Bureau of Transportation and serving numerous urban and suburban areas across the city.
-
B.
Sapporo Municipal Subway
Sapporo Municipal Subway is the rapid transit system serving the city of Sapporo in Hokkaido, Japan, providing urban rail transportation across several key lines and stations.
-
C.
Tokyo Metro
Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
-
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.
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.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ab4a4ef9008190a0e6d4422b9418b7 |
completed | March 6, 2026, 9:42 p.m. |
| NER | Named-entity recognition | batch_69abd35ef22c8190966612cc75f69eca |
completed | March 7, 2026, 7:27 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af83a4f6788190be268076838711df |
completed | March 10, 2026, 2:36 a.m. |
| NEDg | Description generation | batch_69af84d26eb48190b982441a0a63ccda |
completed | March 10, 2026, 2:41 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69af858561f48190b7a2863d733a1b13 |
completed | March 10, 2026, 2:44 a.m. |
Created at: March 6, 2026, 9:48 p.m.