Triple
T38413828
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Heathrow Airport rail network |
E901549
|
entity |
| Predicate | usesRollingStockFrom |
P5426
|
FINISHED |
| Object |
Elizabeth line Class 345 trains
Elizabeth line Class 345 trains are modern, high-capacity electric multiple units built for London's Elizabeth line, featuring walk-through carriages, step-free access, and advanced onboard systems for urban and airport rail services.
|
E2268417
|
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: Elizabeth line Class 345 trains | Statement: [Heathrow Airport rail network, usesRollingStockFrom, Elizabeth line Class 345 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: Elizabeth line Class 345 trains Triple: [Heathrow Airport rail network, usesRollingStockFrom, Elizabeth line Class 345 trains]
Generated description
Elizabeth line Class 345 trains are modern, high-capacity electric multiple units built for London's Elizabeth line, featuring walk-through carriages, step-free access, and advanced onboard systems for urban and airport rail services.
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_69f76e61e79c81908b787d83b46ab92b |
completed | May 3, 2026, 3:48 p.m. |
| NER | Named-entity recognition | batch_69fccd6665388190995223f7af273ecd |
completed | May 7, 2026, 5:35 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a41b2c2066481908fdb9cc5fc465666 |
completed | June 28, 2026, 11:48 p.m. |
| NEDg | Description generation | batch_6a41b67584c48190840b9d38b56b44d8 |
completed | June 29, 2026, 12:04 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a41b6ff98248190a5f18ded2db2295e |
completed | June 29, 2026, 12:06 a.m. |
Created at: May 3, 2026, 4:31 p.m.