Triple
T12229839
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Central MTR station |
E291444
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | MTR Corporation |
E338342
|
NE FINISHED |
How this triple was built (2 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 | Statement: [Central MTR station, operator, MTR Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MTR Corporation Context triple: [Central MTR station, operator, MTR Corporation]
-
A.
MTR Corporation
chosen
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.
-
B.
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.
-
C.
MTR Nordic
MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
-
D.
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.
-
E.
Kai Tak Investment Company
Kai Tak Investment Company was a Hong Kong-based firm whose involvement in early land development and aviation projects led to the city’s former international airport bearing its name.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d6ab668acc8190963ba424049d6aee |
completed | April 8, 2026, 7:24 p.m. |
| NER | Named-entity recognition | batch_69d91ca34fe88190900c8791c70948b7 |
completed | April 10, 2026, 3:52 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f60aad2d488190ba36588e3376ca1a |
completed | May 2, 2026, 2:31 p.m. |
Created at: April 8, 2026, 9:51 p.m.