Triple
T458448
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 1 Yonge–University |
E7281
|
entity |
| Predicate | hasRollingStock |
P1305
|
FINISHED |
| Object |
Toronto Rocket trains
Toronto Rocket trains are modern, fully accessible subway trains used by the Toronto Transit Commission, featuring open gangways, automated announcements, and advanced safety systems.
|
E46847
|
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 Rocket trains | Statement: [Line 1 Yonge–University, hasRollingStock, Toronto Rocket trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toronto Rocket trains Context triple: [Line 1 Yonge–University, hasRollingStock, Toronto Rocket trains]
-
A.
Toronto Civic Railways
Toronto Civic Railways was a municipally owned streetcar system that operated in Toronto in the early 20th century before being absorbed into the unified public transit network.
-
B.
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.
-
C.
TTC
TTC is an organizational partner of the 3rd Generation Partnership Project (3GPP), contributing to the development and standardization of mobile telecommunications technologies.
-
D.
Toronto Transit Commission
The Toronto Transit Commission is the public agency that operates Toronto’s primary network of subways, buses, and streetcars.
-
E.
Toronto streetcar system
The Toronto streetcar system is one of the largest and oldest electric streetcar networks in North America, serving as a key component of Toronto’s public transit and urban identity.
- 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 Rocket trains Triple: [Line 1 Yonge–University, hasRollingStock, Toronto Rocket trains]
Generated description
Toronto Rocket trains are modern, fully accessible subway trains used by the Toronto Transit Commission, featuring open gangways, automated announcements, and advanced safety systems.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Toronto Rocket trains Target entity description: Toronto Rocket trains are modern, fully accessible subway trains used by the Toronto Transit Commission, featuring open gangways, automated announcements, and advanced safety systems.
-
A.
Toronto Civic Railways
Toronto Civic Railways was a municipally owned streetcar system that operated in Toronto in the early 20th century before being absorbed into the unified public transit network.
-
B.
Toronto subway
chosen
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.
-
C.
TTC
TTC is an organizational partner of the 3rd Generation Partnership Project (3GPP), contributing to the development and standardization of mobile telecommunications technologies.
-
D.
Toronto Transit Commission
The Toronto Transit Commission is the public agency that operates Toronto’s primary network of subways, buses, and streetcars.
-
E.
Toronto streetcar system
The Toronto streetcar system is one of the largest and oldest electric streetcar networks in North America, serving as a key component of Toronto’s public transit and urban identity.
- F. None of above.
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_69a2efa3163081909acff040a22bd559 |
completed | Feb. 28, 2026, 1:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a467fd7cc48190b00982c4f1c41eaf |
completed | March 1, 2026, 4:23 p.m. |
| NEDg | Description generation | batch_69a4688a2cbc8190a2110fcd32b63f19 |
completed | March 1, 2026, 4:25 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a468dfc120819098e9f66c8193a20f |
completed | March 1, 2026, 4:27 p.m. |
Created at: Feb. 28, 2026, 1:12 p.m.