Triple
T25128384
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metrorex |
E629455
|
entity |
| Predicate | operatesRollingStock |
P5426
|
FINISHED |
| Object |
Astra IVA metro trains
Astra IVA metro trains are a series of Romanian-built electric multiple unit subway trains that have long served as the backbone of the Bucharest Metro fleet.
|
E1667777
|
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: Astra IVA metro trains | Statement: [Metrorex, operatesRollingStock, Astra IVA metro trains]
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Astra IVA metro trains Triple: [Metrorex, operatesRollingStock, Astra IVA metro trains]
Generated description
Astra IVA metro trains are a series of Romanian-built electric multiple unit subway trains that have long served as the backbone of the Bucharest Metro fleet.
Provenance (5 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_69e2ff3288048190bd82c3b7f7bd0e62 |
completed | April 18, 2026, 3:49 a.m. |
| NER | Named-entity recognition | batch_69f465f5dac08190a76de4990c496bf6 |
completed | May 1, 2026, 8:36 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a105cfa51348190bee27cbcf0f3b3bf |
completed | May 22, 2026, 1:41 p.m. |
| NEDg | Description generation | batch_6a105e161df88190ba6a36e7581cd4ae |
completed | May 22, 2026, 1:45 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a105f91c8808190b902d606e0ad6d0e |
completed | May 22, 2026, 1:52 p.m. |
Created at: April 18, 2026, 6:28 a.m.