Triple
T23001137
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CRRC Qingdao Sifang |
E572634
|
entity |
| Predicate | notableWork |
P4
|
FINISHED |
| Object | Singapore MRT trains (C151A, C151B, C151C, T251, etc.) |
—
|
NE NERFINISHED |
How this triple was built (3 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: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) | Statement: [CRRC Qingdao Sifang, notableWork, Singapore MRT trains (C151A, C151B, C151C, T251, etc.)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) Context triple: [CRRC Qingdao Sifang, notableWork, Singapore MRT trains (C151A, C151B, C151C, T251, etc.)]
-
A.
SMRT Trains
SMRT Trains is a major rail operator in Singapore responsible for running key lines of the Mass Rapid Transit (MRT) system.
-
B.
E-series metro trains
E-series metro trains are an earlier generation of Soviet-designed electric multiple units that served as a foundational model for later metro rolling stock across various Eastern European and former Soviet cities.
-
C.
M1 trains
M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
-
D.
Mass Rapid Transit (MRT) network of Singapore
The Mass Rapid Transit (MRT) network of Singapore is a high-capacity urban rail system that forms the backbone of the city-state’s public transport, efficiently connecting key residential, commercial, and industrial areas.
-
E.
MTR EMU trains
MTR EMU trains are electric multiple unit passenger trains operated by Hong Kong’s MTR system, designed for high-frequency urban and suburban rail services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) Target entity description: Singapore MRT trains (C151A, C151B, C151C, T251, etc.) are modern electric multiple unit train sets operating on Singapore’s Mass Rapid Transit network, providing high-capacity, high-frequency urban rail transport.
-
A.
SMRT Trains
SMRT Trains is a major rail operator in Singapore responsible for running key lines of the Mass Rapid Transit (MRT) system.
-
B.
E-series metro trains
E-series metro trains are an earlier generation of Soviet-designed electric multiple units that served as a foundational model for later metro rolling stock across various Eastern European and former Soviet cities.
-
C.
M1 trains
M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
-
D.
Mass Rapid Transit (MRT) network of Singapore
The Mass Rapid Transit (MRT) network of Singapore is a high-capacity urban rail system that forms the backbone of the city-state’s public transport, efficiently connecting key residential, commercial, and industrial areas.
-
E.
MTR EMU trains
MTR EMU trains are electric multiple unit passenger trains operated by Hong Kong’s MTR system, designed for high-frequency urban and suburban rail services.
- F. None of above. chosen
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_69e245b6a3ac81908087599eefe3e365 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f18352bcf48190bd474eff69b3465b |
completed | April 29, 2026, 4:04 a.m. |
Created at: April 17, 2026, 3:50 p.m.