Triple
T12064792
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tachikawa |
E287266
|
entity |
| Predicate | servedByRailwayOperator |
P20222
|
FINISHED |
| Object | Tama Toshi Monorail Line |
—
|
NE NERFINISHED |
How this triple was built (3 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: Tama Toshi Monorail Line | Statement: [Tachikawa, servedByRailwayOperator, Tama Toshi Monorail Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tama Toshi Monorail Line Context triple: [Tachikawa, servedByRailwayOperator, Tama Toshi Monorail Line]
-
A.
Seibu Tamako Line
The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
-
B.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
-
C.
Minatomirai Line
The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
-
D.
Nagoya Subway Tsurumai Line
The Nagoya Subway Tsurumai Line is a major rapid transit line in Nagoya, Japan, operated by the Nagoya Municipal Subway and serving key urban and suburban areas across the city.
-
E.
Toei Mita Line
The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
- 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: Tama Toshi Monorail Line Target entity description: The Tama Toshi Monorail Line is an urban monorail system in western Tokyo, Japan, providing north–south transit through the Tama area and connecting key hubs such as Tachikawa.
-
A.
Seibu Tamako Line
The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
-
B.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
-
C.
Minatomirai Line
The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
-
D.
Nagoya Subway Tsurumai Line
The Nagoya Subway Tsurumai Line is a major rapid transit line in Nagoya, Japan, operated by the Nagoya Municipal Subway and serving key urban and suburban areas across the city.
-
E.
Toei Mita Line
The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
- F. None of above. chosen
Provenance (2 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_69d6ab4846e081908ee7bbd66a6d3459 |
completed | April 8, 2026, 7:23 p.m. |
| NER | Named-entity recognition | batch_69d90440dd988190ae2b80367aceb6f7 |
completed | April 10, 2026, 2:08 p.m. |
Created at: April 8, 2026, 9:48 p.m.