Triple

T22441780
Position Surface form Disambiguated ID Type / Status
Subject Chengdu Metro Line 1 E554769 entity
Predicate owner P347 FINISHED
Object Chengdu Metro Limited
Chengdu Metro Limited is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Chengdu, China.
 E1537355 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: Chengdu Metro Limited | Statement: [Chengdu Metro Line 1, owner, Chengdu Metro Limited]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chengdu Metro Limited
Context triple: [Chengdu Metro Line 1, owner, Chengdu Metro Limited]
  • 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. Kunming Rail Transit Group
    Kunming Rail Transit Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Kunming, China.
  • C. 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.
  • D. Beijing MTR Corporation Limited
    Beijing MTR Corporation Limited is a joint-venture rail transit company responsible for operating and managing several lines of the Beijing Subway system.
  • E. Shanghai Shentong Metro Group
    Shanghai Shentong Metro Group is the state-owned company responsible for operating and managing Shanghai’s urban rapid transit network.
  • 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: Chengdu Metro Limited
Triple: [Chengdu Metro Line 1, owner, Chengdu Metro Limited]
Generated description
Chengdu Metro Limited is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Chengdu, China.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chengdu Metro Limited
Target entity description: Chengdu Metro Limited is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Chengdu, 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. Kunming Rail Transit Group
    Kunming Rail Transit Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit system in Kunming, China.
  • C. 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.
  • D. Beijing MTR Corporation Limited
    Beijing MTR Corporation Limited is a joint-venture rail transit company responsible for operating and managing several lines of the Beijing Subway system.
  • E. Shanghai Shentong Metro Group
    Shanghai Shentong Metro Group is the state-owned company responsible for operating and managing Shanghai’s urban rapid transit network.
  • 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_69e11e5010e48190ae1e9c9db9697637 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f15ae2f7608190b1c1e8bd12ca2162 completed April 29, 2026, 1:12 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b0c7001348190a6959ad5358f2fa4 completed May 18, 2026, 12:56 p.m.
NEDg Description generation batch_6a0b0d10a50881909fb586a3c529623d completed May 18, 2026, 12:58 p.m.
NED2 Entity disambiguation (via description) batch_6a0b0daf9bac819086166985458f6742 completed May 18, 2026, 1:01 p.m.
Created at: April 16, 2026, 8:47 p.m.