Triple
T458461
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 3 Scarborough |
E7282
|
entity |
| Predicate | terminusAt |
P388
|
FINISHED |
| Object |
McCowan station
McCowan station is an elevated Toronto subway station in Scarborough that served as the eastern terminus of the former Line 3 Scarborough.
|
E78053
|
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: McCowan station | Statement: [Line 3 Scarborough, terminusAt, McCowan station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: McCowan station Context triple: [Line 3 Scarborough, terminusAt, McCowan station]
-
A.
Waban station
Waban station is a light rail stop on Boston's MBTA Green Line located in the Waban neighborhood of Newton, Massachusetts.
-
B.
Kennedy station
Kennedy station is a major Toronto Transit Commission hub in Scarborough that serves as the eastern terminus for Line 2 Bloor–Danforth and an interchange with other subway and light rail services.
-
C.
Atherton station
Atherton station is a commuter rail stop in Atherton, California, serving Caltrain passengers on the San Francisco Peninsula.
-
D.
St. Clair West station
St. Clair West station is a Toronto Transit Commission subway station on Line 1 serving the St. Clair Avenue West corridor in midtown Toronto.
-
E.
Lawrence West station
Lawrence West station is a subway station on Toronto's Line 1 Yonge–University, serving the Lawrence Heights and surrounding North York area.
- 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: McCowan station Triple: [Line 3 Scarborough, terminusAt, McCowan station]
Generated description
McCowan station is an elevated Toronto subway station in Scarborough that served as the eastern terminus of the former Line 3 Scarborough.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: McCowan station Target entity description: McCowan station is an elevated Toronto subway station in Scarborough that served as the eastern terminus of the former Line 3 Scarborough.
-
A.
Waban station
Waban station is a light rail stop on Boston's MBTA Green Line located in the Waban neighborhood of Newton, Massachusetts.
-
B.
Kennedy station
Kennedy station is a major Toronto Transit Commission hub in Scarborough that serves as the eastern terminus for Line 2 Bloor–Danforth and an interchange with other subway and light rail services.
-
C.
Atherton station
Atherton station is a commuter rail stop in Atherton, California, serving Caltrain passengers on the San Francisco Peninsula.
-
D.
St. Clair West station
St. Clair West station is a Toronto Transit Commission subway station on Line 1 serving the St. Clair Avenue West corridor in midtown Toronto.
-
E.
Lawrence West station
Lawrence West station is a subway station on Toronto's Line 1 Yonge–University, serving the Lawrence Heights and surrounding North York area.
- 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_69a2e7e5c5bc8190a1dc8178218fba40 |
completed | Feb. 28, 2026, 1:04 p.m. |
| NER | Named-entity recognition | batch_69a2f01ec5148190b74e1727712f1163 |
completed | Feb. 28, 2026, 1:39 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a563c01ccc8190a8b9d3ce78ff8ca5 |
completed | March 2, 2026, 10:17 a.m. |
| NEDg | Description generation | batch_69a565835d7c8190b5103f21ad509b40 |
completed | March 2, 2026, 10:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a5662d775481908700fbd2e6809465 |
completed | March 2, 2026, 10:27 a.m. |
Created at: Feb. 28, 2026, 1:12 p.m.