Triple
T17808977
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shenzhen Metro Line 4 |
E444645
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | MTR Corporation |
—
|
NE NERFINISHED |
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: [Shenzhen Metro Line 4, operator, MTR Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MTR Corporation Context triple: [Shenzhen Metro Line 4, 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.
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.
-
C.
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.
-
D.
Cross-Harbour Tunnel Company Limited
Cross-Harbour Tunnel Company Limited is a Hong Kong-based company that formerly operated and managed the city’s first underwater road tunnel linking Hong Kong Island and Kowloon.
-
E.
New Hong Kong Tunnel Company Limited
New Hong Kong Tunnel Company Limited is a private concessionaire responsible for managing and operating major road and rail tunnel infrastructure in Hong Kong.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d8b9f0de78819099395b14db75a8a6 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4887976e48190842840ef064dc772 |
completed | April 19, 2026, 7:47 a.m. |
Created at: April 10, 2026, 10:14 a.m.