Triple
T21569096
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Rail Express Systems |
E532237
|
entity |
| Predicate | trainTypeUsed |
P56947
|
FINISHED |
| Object | Class 90 locomotive |
—
|
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: Class 90 locomotive | Statement: [Rail Express Systems, trainTypeUsed, Class 90 locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 90 locomotive Context triple: [Rail Express Systems, trainTypeUsed, Class 90 locomotive]
-
A.
Class 86 locomotive
The Class 86 locomotive is a British electric locomotive class introduced in the 1960s for high-speed passenger and freight services on the West Coast Main Line and other electrified routes.
-
B.
Class 67 locomotive
The Class 67 locomotive is a type of high-speed diesel-electric locomotive used on the British railway network for both passenger and freight services.
-
C.
Class 68 locomotive
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
-
D.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
-
E.
ALP-45DP locomotive
The ALP-45DP locomotive is a dual-mode (diesel and electric) passenger locomotive used in North America that allows seamless operation between electrified and non-electrified rail lines.
- 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: Class 90 locomotive Target entity description: The Class 90 locomotive is a British electric locomotive class introduced in the late 1980s, widely used for both high-speed passenger and heavy freight services on the UK rail network.
-
A.
Class 86 locomotive
The Class 86 locomotive is a British electric locomotive class introduced in the 1960s for high-speed passenger and freight services on the West Coast Main Line and other electrified routes.
-
B.
Class 67 locomotive
The Class 67 locomotive is a type of high-speed diesel-electric locomotive used on the British railway network for both passenger and freight services.
-
C.
Class 68 locomotive
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
-
D.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
-
E.
ALP-45DP locomotive
The ALP-45DP locomotive is a dual-mode (diesel and electric) passenger locomotive used in North America that allows seamless operation between electrified and non-electrified rail lines.
- 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_69e0c460db088190828c64206a450273 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69eee9cb9718819094fc95b25df68bd1 |
completed | April 27, 2026, 4:44 a.m. |
Created at: April 16, 2026, 6:30 p.m.