Triple
T7770699
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro Line 54 |
E179060
|
entity |
| Predicate | hasRollingStock |
P1305
|
FINISHED |
| Object | Amsterdam Metro M4 series |
E170672
|
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: Amsterdam Metro M4 series | Statement: [Metro Line 54, hasRollingStock, Amsterdam Metro M4 series]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amsterdam Metro M4 series Context triple: [Metro Line 54, hasRollingStock, Amsterdam Metro M4 series]
-
A.
Amsterdam Metro M4 series
chosen
The Amsterdam Metro M4 series is a generation of electric multiple-unit metro trains that operate on Amsterdam’s rapid transit network.
-
B.
Amsterdam Metro M5 series
The Amsterdam Metro M5 series is a modern generation of metro trains used on Amsterdam’s rapid transit network, featuring improved capacity, accessibility, and energy efficiency compared to older rolling stock.
-
C.
Amsterdam Metro rolling stock fleet
The Amsterdam Metro rolling stock fleet comprises the various train types and series used to operate metro services across the Amsterdam rapid transit network.
-
D.
Rotterdam Metro
The Rotterdam Metro is the rapid transit system serving Rotterdam and surrounding municipalities in the Netherlands, providing high-frequency urban and suburban rail connections.
-
E.
Rotterdamse Elektrische Tram
Rotterdamse Elektrische Tram is the main public transport company in Rotterdam, Netherlands, operating the city's trams, buses, and metro services.
- 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_69c69f30602c819082ab52cd4af5c592 |
completed | March 27, 2026, 3:16 p.m. |
| NER | Named-entity recognition | batch_69c70438ca2481909114b0c434717109 |
completed | March 27, 2026, 10:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c8d6d0f1988190b4df650bebb61fd3 |
completed | March 29, 2026, 7:37 a.m. |
Created at: March 27, 2026, 4:11 p.m.