Triple
T474796
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | London Underground |
E9036
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Waterloo & City line
The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
|
E63600
|
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: Waterloo & City line | Statement: [London Underground, hasPart, Waterloo & City line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Waterloo & City line Context triple: [London Underground, hasPart, Waterloo & City line]
-
A.
Line 1 Yonge–University
Line 1 Yonge–University is the busiest and oldest subway line in Toronto’s transit system, forming a U-shaped route through the city’s downtown core and major north–south corridors.
-
B.
Spadina streetcar line
The Spadina streetcar line is a major Toronto Transit Commission route running along Spadina Avenue, connecting key downtown destinations including the University of Toronto’s St. George campus.
-
C.
Line 2 Bloor–Danforth
Line 2 Bloor–Danforth is a major east–west subway line in Toronto’s rapid transit system, running primarily along Bloor Street and Danforth Avenue.
-
D.
IND Crosstown Line
The IND Crosstown Line is a New York City Subway line in Brooklyn and Queens served by the G train, notable for being the only major line that does not enter Manhattan.
-
E.
Toronto subway
The Toronto subway is the primary rapid transit system in Toronto, Ontario, consisting of multiple underground and elevated lines that serve as the backbone of the city’s public transportation network.
- 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: Waterloo & City line Triple: [London Underground, hasPart, Waterloo & City line]
Generated description
The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Waterloo & City line Target entity description: The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
-
A.
Line 1 Yonge–University
Line 1 Yonge–University is the busiest and oldest subway line in Toronto’s transit system, forming a U-shaped route through the city’s downtown core and major north–south corridors.
-
B.
Spadina streetcar line
The Spadina streetcar line is a major Toronto Transit Commission route running along Spadina Avenue, connecting key downtown destinations including the University of Toronto’s St. George campus.
-
C.
Line 2 Bloor–Danforth
Line 2 Bloor–Danforth is a major east–west subway line in Toronto’s rapid transit system, running primarily along Bloor Street and Danforth Avenue.
-
D.
IND Crosstown Line
The IND Crosstown Line is a New York City Subway line in Brooklyn and Queens served by the G train, notable for being the only major line that does not enter Manhattan.
-
E.
Toronto subway
The Toronto subway is the primary rapid transit system in Toronto, Ontario, consisting of multiple underground and elevated lines that serve as the backbone of the city’s public transportation network.
- 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_69a2e7ff81708190b0507a24a997232c |
completed | Feb. 28, 2026, 1:05 p.m. |
| NER | Named-entity recognition | batch_69a2f039f3d88190a7c93ecbf1bf5f58 |
completed | Feb. 28, 2026, 1:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a49eb7b49c819098352f36d020cde7 |
completed | March 1, 2026, 8:16 p.m. |
| NEDg | Description generation | batch_69a49f2f2b4c8190b35eb623a28187e6 |
completed | March 1, 2026, 8:18 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a49fcd6d448190a40af17c0a113aed |
completed | March 1, 2026, 8:21 p.m. |
Created at: Feb. 28, 2026, 1:12 p.m.