Triple
T1257440
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Station, Toronto |
E12424
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object |
GO Transit Stouffville line
The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
|
E151489
|
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: GO Transit Stouffville line | Statement: [Union Station, Toronto, serves, GO Transit Stouffville line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GO Transit Stouffville line Context triple: [Union Station, Toronto, serves, GO Transit Stouffville line]
-
A.
GO Transit Kitchener line
The GO Transit Kitchener line is a regional commuter rail corridor in Southern Ontario that connects Toronto with communities to the west, including Kitchener and Waterloo.
-
B.
GO Transit Barrie line
The GO Transit Barrie line is a commuter rail service in the Greater Toronto Area that connects downtown Toronto with communities to the north, including the city of Barrie.
-
C.
GO Transit Lakeshore East line
The GO Transit Lakeshore East line is a commuter rail corridor in the Greater Toronto Area that runs eastward from Toronto’s Union Station through suburban communities toward Oshawa.
-
D.
GO Transit
GO Transit is a regional public transit system in Southern Ontario, Canada, providing commuter rail and bus services connecting Toronto with surrounding municipalities.
-
E.
GO Transit Lakeshore West line
The GO Transit Lakeshore West line is a commuter rail corridor in Southern Ontario that runs westward from Toronto’s Union Station through cities along the shore of Lake Ontario to Hamilton and Niagara Falls.
- 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: GO Transit Stouffville line Triple: [Union Station, Toronto, serves, GO Transit Stouffville line]
Generated description
The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: GO Transit Stouffville line Target entity description: The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
-
A.
GO Transit Kitchener line
The GO Transit Kitchener line is a regional commuter rail corridor in Southern Ontario that connects Toronto with communities to the west, including Kitchener and Waterloo.
-
B.
GO Transit Barrie line
The GO Transit Barrie line is a commuter rail service in the Greater Toronto Area that connects downtown Toronto with communities to the north, including the city of Barrie.
-
C.
GO Transit Lakeshore East line
The GO Transit Lakeshore East line is a commuter rail corridor in the Greater Toronto Area that runs eastward from Toronto’s Union Station through suburban communities toward Oshawa.
-
D.
GO Transit
GO Transit is a regional public transit system in Southern Ontario, Canada, providing commuter rail and bus services connecting Toronto with surrounding municipalities.
-
E.
GO Transit Lakeshore West line
The GO Transit Lakeshore West line is a commuter rail corridor in Southern Ontario that runs westward from Toronto’s Union Station through cities along the shore of Lake Ontario to Hamilton and Niagara Falls.
- 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_69a4933352e08190ac617291985e76c0 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a4bfa8cfa08190ac49c437a94a843c |
completed | March 1, 2026, 10:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acbf1c90608190a0fa4d3722897966 |
completed | March 8, 2026, 12:13 a.m. |
| NEDg | Description generation | batch_69acbfc03f20819089a025fc745c9203 |
completed | March 8, 2026, 12:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69acc0282080819087676813c2852a96 |
completed | March 8, 2026, 12:17 a.m. |
Created at: March 1, 2026, 7:50 p.m.