Triple
T5750474
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Red Line (Los Angeles Metro) |
E126838
|
entity |
| Predicate | openingSegment |
P28341
|
FINISHED |
| Object | Union Station–Westlake/MacArthur Park |
E92516
|
NE FINISHED |
How this triple was built (2 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: Union Station–Westlake/MacArthur Park | Statement: [Red Line (Los Angeles Metro), openingSegment, Union Station–Westlake/MacArthur Park]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Station–Westlake/MacArthur Park Context triple: [Red Line (Los Angeles Metro), openingSegment, Union Station–Westlake/MacArthur Park]
-
A.
Union station
Union Station is Toronto’s primary intercity and commuter rail hub, serving as a central transit gateway in the city’s downtown core.
-
B.
Westlake/MacArthur Park station
chosen
Westlake/MacArthur Park station is a major Los Angeles Metro Rail subway stop near downtown Los Angeles, serving as a busy transit hub for the surrounding Westlake and MacArthur Park neighborhoods.
-
C.
Union Station
Union Station is a historic train station name commonly used for major passenger rail terminals in several North American cities.
-
D.
Union Station
Union Station is a historic former railroad terminal in St. Louis that has been transformed into a mixed-use complex featuring attractions, dining, and entertainment.
-
E.
Union Station
Union Station is a historic train station and transportation hub in Worcester, Massachusetts, known for its grand Beaux-Arts architecture and role as a key gateway to the city.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69c00832aedc81909899801b141fa3b4 |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c0288a0ea8819091ac6f965471ceee |
completed | March 22, 2026, 5:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c07e358d908190a37e5df89df3aedc |
completed | March 22, 2026, 11:41 p.m. |
Created at: March 22, 2026, 3:48 p.m.