Triple
T21804597
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | InterCity sector of British Rail |
E538316
|
entity |
| Predicate | usedRollingStock |
P5426
|
FINISHED |
| Object | Mark 4 coaches |
—
|
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: Mark 4 coaches | Statement: [InterCity sector of British Rail, usedRollingStock, Mark 4 coaches]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mark 4 coaches Context triple: [InterCity sector of British Rail, usedRollingStock, Mark 4 coaches]
-
A.
Mark 4 coaching stock
chosen
Mark 4 coaching stock is a later generation of British Rail high-speed passenger carriages designed for improved comfort, safety, and performance, primarily used on the East Coast Main Line.
-
B.
Mark-4
Mark-4 is a fourth-generation Jaeger classification used in the Pacific Rim universe, denoting advanced combat robots like Crimson Typhoon.
-
C.
Mark 3 coaching stock
Mark 3 coaching stock is a class of British Rail passenger carriages introduced in the 1970s, known for their high-speed capability, improved ride quality, and extensive use on intercity services across the UK rail network.
-
D.
Mark 2 coaching stock
Mark 2 coaching stock is a class of British Rail passenger carriages introduced in the 1960s, widely used across the UK rail network for intercity and regional services.
-
E.
Mark 1 TPO coaches
Mark 1 TPO coaches were British Rail postal sorting and carriage vehicles derived from the Mark 1 coach design, used for Travelling Post Office services across the UK rail network.
- 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_69e0c4733f4081909a86622e7e6d15d2 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69f07801fa8081909098d00947bf8f7f |
completed | April 28, 2026, 9:04 a.m. |
Created at: April 16, 2026, 6:53 p.m.