Triple
T8302856
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SkyTrain Expo Line |
E194386
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
Mark I SkyTrain cars
Mark I SkyTrain cars are the original generation of automated, driverless rapid transit vehicles used on Vancouver’s SkyTrain system.
|
E723806
|
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: Mark I SkyTrain cars | Statement: [SkyTrain Expo Line, rollingStock, Mark I SkyTrain cars]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mark I SkyTrain cars Context triple: [SkyTrain Expo Line, rollingStock, Mark I SkyTrain cars]
-
A.
R143 subway cars
The R143 subway cars are a class of New York City Subway rolling stock built in the early 2000s, primarily used on the BMT Canarsie Line and known for introducing modern features like electronic signage and automated announcements.
-
B.
R160 subway cars
The R160 subway cars are a class of modern New Technology Train rolling stock used on various New York City Subway lines, featuring electronic signage, automated announcements, and improved accessibility and reliability compared to older fleets.
-
C.
R62A subway cars
The R62A subway cars are stainless-steel New York City Subway rolling stock built in the 1980s for the IRT division, known for their distinctive front-end design and long service on numbered lines.
-
D.
R211 subway cars
The R211 subway cars are a modern generation of New York City Subway rolling stock featuring updated technology, improved accessibility, and enhanced passenger amenities.
-
E.
Mark VI monorail trains
Mark VI monorail trains are a fleet of streamlined, automated monorail vehicles introduced in the late 1980s that serve as the primary passenger trains for the Walt Disney World Resort’s elevated transit system.
- 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: Mark I SkyTrain cars Triple: [SkyTrain Expo Line, rollingStock, Mark I SkyTrain cars]
Generated description
Mark I SkyTrain cars are the original generation of automated, driverless rapid transit vehicles used on Vancouver’s SkyTrain system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mark I SkyTrain cars Target entity description: Mark I SkyTrain cars are the original generation of automated, driverless rapid transit vehicles used on Vancouver’s SkyTrain system.
-
A.
R143 subway cars
The R143 subway cars are a class of New York City Subway rolling stock built in the early 2000s, primarily used on the BMT Canarsie Line and known for introducing modern features like electronic signage and automated announcements.
-
B.
R160 subway cars
The R160 subway cars are a class of modern New Technology Train rolling stock used on various New York City Subway lines, featuring electronic signage, automated announcements, and improved accessibility and reliability compared to older fleets.
-
C.
R62A subway cars
The R62A subway cars are stainless-steel New York City Subway rolling stock built in the 1980s for the IRT division, known for their distinctive front-end design and long service on numbered lines.
-
D.
R211 subway cars
The R211 subway cars are a modern generation of New York City Subway rolling stock featuring updated technology, improved accessibility, and enhanced passenger amenities.
-
E.
Mark VI monorail trains
Mark VI monorail trains are a fleet of streamlined, automated monorail vehicles introduced in the late 1980s that serve as the primary passenger trains for the Walt Disney World Resort’s elevated transit system.
- 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_69ca82e613e88190bf8139669bbd0d53 |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb7e8a45348190a7895b33abcb64c9 |
completed | March 31, 2026, 7:58 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cd68c2a14c81908388ecdd22315390 |
completed | April 1, 2026, 6:49 p.m. |
| NEDg | Description generation | batch_69cd6d58032c8190ba99f78670924ae5 |
completed | April 1, 2026, 7:09 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cd7e5be1108190afbc65b69a7700f2 |
completed | April 1, 2026, 8:21 p.m. |
Created at: March 30, 2026, 5:53 p.m.