Triple
T2790326
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Northern line |
E61912
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
1995 Stock
1995 Stock is a type of London Underground train used on the Northern line, introduced in the mid-1990s with modern features for improved performance and passenger comfort.
|
E298521
|
NE FINISHED |
How this triple was built (4 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: 1995 Stock | Statement: [Northern line, rollingStock, 1995 Stock]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 1995 Stock Context triple: [Northern line, rollingStock, 1995 Stock]
-
A.
1992 Stock
1992 Stock is a type of London Underground electric multiple unit train built for deep-level tube services, notably used on the Central line.
-
B.
1972 Stock
1972 Stock is a class of London Underground trains built in the early 1970s, primarily used on deep-level tube lines such as the Bakerloo line.
-
C.
Heritage Classic
The Heritage Classic is an outdoor regular-season National Hockey League game held in Canada, celebrating the league’s roots with open-air matchups in iconic Canadian venues.
-
D.
B90 stock
B90 stock is a class of automated light rail vehicles used on London's Docklands Light Railway, introduced in the early 1990s to expand and modernize the system’s fleet.
-
E.
A500
A500 is the common shorthand for the Commodore Amiga 500, a popular late-1980s home computer known for its advanced graphics and sound capabilities.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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: 1995 Stock Triple: [Northern line, rollingStock, 1995 Stock]
Generated description
1995 Stock is a type of London Underground train used on the Northern line, introduced in the mid-1990s with modern features for improved performance and passenger comfort.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 1995 Stock Target entity description: 1995 Stock is a type of London Underground train used on the Northern line, introduced in the mid-1990s with modern features for improved performance and passenger comfort.
-
A.
1992 Stock
1992 Stock is a type of London Underground electric multiple unit train built for deep-level tube services, notably used on the Central line.
-
B.
1972 Stock
1972 Stock is a class of London Underground trains built in the early 1970s, primarily used on deep-level tube lines such as the Bakerloo line.
-
C.
Heritage Classic
The Heritage Classic is an outdoor regular-season National Hockey League game held in Canada, celebrating the league’s roots with open-air matchups in iconic Canadian venues.
-
D.
B90 stock
B90 stock is a class of automated light rail vehicles used on London's Docklands Light Railway, introduced in the early 1990s to expand and modernize the system’s fleet.
-
E.
A500
A500 is the common shorthand for the Commodore Amiga 500, a popular late-1980s home computer known for its advanced graphics and sound capabilities.
- F. None of above. chosen
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_69ab4b7f51d881908768300ebd2fbdae |
completed | March 6, 2026, 9:47 p.m. |
| NER | Named-entity recognition | batch_69abddb4ef3081909122840a357801bf |
completed | March 7, 2026, 8:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69afc65c1f848190b6efeefb64a3e131 |
completed | March 10, 2026, 7:21 a.m. |
| NEDg | Description generation | batch_69afc6e6d4bc81908108fe24677448c3 |
completed | March 10, 2026, 7:23 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69afc7907be88190b70458ed735261e8 |
completed | March 10, 2026, 7:26 a.m. |
Created at: March 6, 2026, 9:58 p.m.