Triple
T1771608
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | York Region, Ontario |
E38885
|
entity |
| Predicate | hasMajorRailService |
P522
|
FINISHED |
| Object |
Toronto Transit Commission Line 1 extension
The Toronto Transit Commission Line 1 extension is a subway line expansion that extends Toronto’s primary north–south rapid transit route into York Region, improving regional connectivity and access to the city’s transit network.
|
E200162
|
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: Toronto Transit Commission Line 1 extension | Statement: [York Region, Ontario, hasMajorRailService, Toronto Transit Commission Line 1 extension]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toronto Transit Commission Line 1 extension Context triple: [York Region, Ontario, hasMajorRailService, Toronto Transit Commission Line 1 extension]
-
A.
Trillium Line
The Trillium Line is a diesel light rail transit line in Ottawa, Ontario, forming part of the city’s O-Train network and connecting southern communities with the downtown area.
-
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.
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.
-
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.
Eglinton East
Eglinton East is a diverse residential and commercial neighbourhood in the eastern part of Toronto, Ontario, known for its multicultural community and urban character.
- 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: Toronto Transit Commission Line 1 extension Triple: [York Region, Ontario, hasMajorRailService, Toronto Transit Commission Line 1 extension]
Generated description
The Toronto Transit Commission Line 1 extension is a subway line expansion that extends Toronto’s primary north–south rapid transit route into York Region, improving regional connectivity and access to the city’s transit network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Toronto Transit Commission Line 1 extension Target entity description: The Toronto Transit Commission Line 1 extension is a subway line expansion that extends Toronto’s primary north–south rapid transit route into York Region, improving regional connectivity and access to the city’s transit network.
-
A.
Trillium Line
The Trillium Line is a diesel light rail transit line in Ottawa, Ontario, forming part of the city’s O-Train network and connecting southern communities with the downtown area.
-
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.
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.
-
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.
Eglinton East
Eglinton East is a diverse residential and commercial neighbourhood in the eastern part of Toronto, Ontario, known for its multicultural community and urban character.
- 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_69a8862e61708190af97b9838cc3f5de |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69abaffd9b68819084f6c4d5e1aace1e |
completed | March 7, 2026, 4:56 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ada995dab48190b7efcf1007fc9d5f |
completed | March 8, 2026, 4:53 p.m. |
| NEDg | Description generation | batch_69adaab3b5008190ba5a07636fe3f2eb |
completed | March 8, 2026, 4:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69adaea83bfc8190a526d5f2bd460e4c |
completed | March 8, 2026, 5:15 p.m. |
Created at: March 4, 2026, 7:31 p.m.