Triple
T17808976
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shenzhen Metro Line 4 |
E444645
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
MTR Corporation (Shenzhen) Limited
MTR Corporation (Shenzhen) Limited is a subsidiary of Hong Kong’s MTR Corporation responsible for operating and managing metro services in Shenzhen, China.
|
E1289834
|
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: MTR Corporation (Shenzhen) Limited | Statement: [Shenzhen Metro Line 4, operator, MTR Corporation (Shenzhen) Limited]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MTR Corporation (Shenzhen) Limited Context triple: [Shenzhen Metro Line 4, operator, MTR Corporation (Shenzhen) Limited]
-
A.
MTR Corporation (Shanghai) Limited
MTR Corporation (Shanghai) Limited is the Shanghai-based subsidiary of Hong Kong’s MTR Corporation, responsible for investing in and operating urban rail transit projects in mainland China.
-
B.
MTR Corporation
MTR Corporation is a Hong Kong-based public transport company best known for operating the city’s mass transit railway network and related property and infrastructure businesses.
-
C.
Shenzhen Metro Group
Shenzhen Metro Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit network in Shenzhen, 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.
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: MTR Corporation (Shenzhen) Limited Triple: [Shenzhen Metro Line 4, operator, MTR Corporation (Shenzhen) Limited]
Generated description
MTR Corporation (Shenzhen) Limited is a subsidiary of Hong Kong’s MTR Corporation responsible for operating and managing metro services in Shenzhen, China.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MTR Corporation (Shenzhen) Limited Target entity description: MTR Corporation (Shenzhen) Limited is a subsidiary of Hong Kong’s MTR Corporation responsible for operating and managing metro services in Shenzhen, China.
-
A.
MTR Corporation (Shanghai) Limited
MTR Corporation (Shanghai) Limited is the Shanghai-based subsidiary of Hong Kong’s MTR Corporation, responsible for investing in and operating urban rail transit projects in mainland China.
-
B.
MTR Corporation
MTR Corporation is a Hong Kong-based public transport company best known for operating the city’s mass transit railway network and related property and infrastructure businesses.
-
C.
Shenzhen Metro Group
Shenzhen Metro Group is the state-owned company responsible for constructing, operating, and managing the urban rail transit network in Shenzhen, 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.
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
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_69d8b9f0de78819099395b14db75a8a6 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4887976e48190842840ef064dc772 |
completed | April 19, 2026, 7:47 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a02ff5e7d7881908bf08022930edbc1 |
completed | May 12, 2026, 10:22 a.m. |
| NEDg | Description generation | batch_6a0300ca1ac88190b474ac8276d55445 |
completed | May 12, 2026, 10:28 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a03017f7ea08190b3a98db1c429d04f |
completed | May 12, 2026, 10:31 a.m. |
Created at: April 10, 2026, 10:14 a.m.