Triple
T6359207
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 3 Union–Pearson Express |
E143066
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Pearson Station
Pearson Station is the airport rail station at Toronto Pearson International Airport serving as the western terminus of the Union–Pearson Express train service.
|
E595208
|
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: Pearson Station | Statement: [Line 3 Union–Pearson Express, hasStation, Pearson Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pearson Station Context triple: [Line 3 Union–Pearson Express, hasStation, Pearson Station]
-
A.
Harrison station
Harrison station is a commuter rail stop in Harrison, New Jersey, serving passengers on the PATH rapid transit system between Newark and New York City.
-
B.
Poplar station
Poplar station is a light rail stop serving the suburb of Mt. Lebanon in the Pittsburgh, Pennsylvania metropolitan area.
-
C.
Courthouse station
Courthouse station is a light rail station in downtown Salt Lake City, Utah, serving the Utah Transit Authority’s TRAX system.
-
D.
Westwood station
Westwood station is a New Jersey Transit commuter rail stop in Westwood, New Jersey, serving passengers on the Pascack Valley Line.
-
E.
Bartlett station
Bartlett station is a commuter rail stop in Bartlett, Illinois, serving passengers on Metra's Milwaukee District/West Line in the Chicago metropolitan 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: Pearson Station Triple: [Line 3 Union–Pearson Express, hasStation, Pearson Station]
Generated description
Pearson Station is the airport rail station at Toronto Pearson International Airport serving as the western terminus of the Union–Pearson Express train service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pearson Station Target entity description: Pearson Station is the airport rail station at Toronto Pearson International Airport serving as the western terminus of the Union–Pearson Express train service.
-
A.
Harrison station
Harrison station is a commuter rail stop in Harrison, New Jersey, serving passengers on the PATH rapid transit system between Newark and New York City.
-
B.
Poplar station
Poplar station is a light rail stop serving the suburb of Mt. Lebanon in the Pittsburgh, Pennsylvania metropolitan area.
-
C.
Courthouse station
Courthouse station is a light rail station in downtown Salt Lake City, Utah, serving the Utah Transit Authority’s TRAX system.
-
D.
Westwood station
Westwood station is a New Jersey Transit commuter rail stop in Westwood, New Jersey, serving passengers on the Pascack Valley Line.
-
E.
Bartlett station
Bartlett station is a commuter rail stop in Bartlett, Illinois, serving passengers on Metra's Milwaukee District/West Line in the Chicago metropolitan 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_69c008d7a9c4819098d647ec47776917 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c067f72f8481908f9df0c0cdf22a52 |
completed | March 22, 2026, 10:06 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c64bab02948190bc64bb0b96a55602 |
completed | March 27, 2026, 9:19 a.m. |
| NEDg | Description generation | batch_69c64f8113c881909d1c85d70d884f5d |
completed | March 27, 2026, 9:36 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6505595cc8190b557ec31f070377f |
completed | March 27, 2026, 9:39 a.m. |
Created at: March 22, 2026, 4:32 p.m.