Triple
T12147286
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Changzhou Metro |
E289357
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Changzhou Metro Group Co., Ltd.
Changzhou Metro Group Co., Ltd. is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Changzhou, China.
|
E289357
|
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: Changzhou Metro Group Co., Ltd. | Statement: [Changzhou Metro, operator, Changzhou Metro Group Co., Ltd.]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Changzhou Metro Group Co., Ltd. Context triple: [Changzhou Metro, operator, Changzhou Metro Group Co., Ltd.]
-
A.
Chongqing Rail Transit Group
Chongqing Rail Transit Group is the state-owned company responsible for building, operating, and managing the urban rail transit network in Chongqing, China.
-
B.
Shanghai Shentong Metro Group
Shanghai Shentong Metro Group is the state-owned company responsible for operating and managing Shanghai’s urban rapid transit network.
-
C.
Changzhou Metro
Changzhou Metro is the urban rapid transit system serving the city of Changzhou in Jiangsu Province, China.
-
D.
Tianjin Metro Group Co., Ltd.
Tianjin Metro Group Co., Ltd. is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Tianjin, China.
-
E.
Guangzhou Metro Group
Guangzhou Metro Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit network in Guangzhou, China.
- 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: Changzhou Metro Group Co., Ltd. Triple: [Changzhou Metro, operator, Changzhou Metro Group Co., Ltd.]
Generated description
Changzhou Metro Group Co., Ltd. is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Changzhou, China.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Changzhou Metro Group Co., Ltd. Target entity description: Changzhou Metro Group Co., Ltd. is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Changzhou, China.
-
A.
Chongqing Rail Transit Group
Chongqing Rail Transit Group is the state-owned company responsible for building, operating, and managing the urban rail transit network in Chongqing, China.
-
B.
Shanghai Shentong Metro Group
Shanghai Shentong Metro Group is the state-owned company responsible for operating and managing Shanghai’s urban rapid transit network.
-
C.
Changzhou Metro
chosen
Changzhou Metro is the urban rapid transit system serving the city of Changzhou in Jiangsu Province, China.
-
D.
Tianjin Metro Group Co., Ltd.
Tianjin Metro Group Co., Ltd. is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Tianjin, China.
-
E.
Guangzhou Metro Group
Guangzhou Metro Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit network in Guangzhou, China.
- F. None of above.
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_69d6ab4c6710819097a9d228382dde43 |
completed | April 8, 2026, 7:23 p.m. |
| NER | Named-entity recognition | batch_69d915ac2ebc81909155f9b2fb4a2252 |
completed | April 10, 2026, 3:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f5f696ec648190aa43655ac8a2b312 |
completed | May 2, 2026, 1:05 p.m. |
| NEDg | Description generation | batch_69f600b7385881909ddb86a1d39ff5d4 |
completed | May 2, 2026, 1:48 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f601e7f3b0819098a2245b9f9316b9 |
completed | May 2, 2026, 1:53 p.m. |
Created at: April 8, 2026, 9:49 p.m.