Triple
T664085
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | BART |
E12820
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Civic Center/UN Plaza station
Civic Center/UN Plaza station is a major underground transit hub in San Francisco serving both BART and Muni Metro lines near the city's Civic Center area.
|
E131136
|
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: Civic Center/UN Plaza station | Statement: [BART, hasStation, Civic Center/UN Plaza station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Civic Center/UN Plaza station Context triple: [BART, hasStation, Civic Center/UN Plaza station]
-
A.
City Hall station
City Hall station is a major underground rapid transit stop in Philadelphia located beneath the city's central municipal complex.
-
B.
Civic Center/Grand Park station
Civic Center/Grand Park station is an underground rapid transit station in downtown Los Angeles serving the Metro B Line and providing access to nearby government buildings and Grand Park.
-
C.
Pearl/Arts District station
Pearl/Arts District station is a Dallas Area Rapid Transit (DART) light rail station serving downtown Dallas and the adjacent Arts District.
-
D.
Central Avenue station
Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
-
E.
Sullivan Square station
Sullivan Square station is a major multimodal transit hub in Boston, Massachusetts, serving MBTA Orange Line trains and numerous bus routes that connect the city and surrounding areas.
- 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: Civic Center/UN Plaza station Triple: [BART, hasStation, Civic Center/UN Plaza station]
Generated description
Civic Center/UN Plaza station is a major underground transit hub in San Francisco serving both BART and Muni Metro lines near the city's Civic Center area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Civic Center/UN Plaza station Target entity description: Civic Center/UN Plaza station is a major underground transit hub in San Francisco serving both BART and Muni Metro lines near the city's Civic Center area.
-
A.
City Hall station
City Hall station is a major underground rapid transit stop in Philadelphia located beneath the city's central municipal complex.
-
B.
Civic Center/Grand Park station
Civic Center/Grand Park station is an underground rapid transit station in downtown Los Angeles serving the Metro B Line and providing access to nearby government buildings and Grand Park.
-
C.
Pearl/Arts District station
Pearl/Arts District station is a Dallas Area Rapid Transit (DART) light rail station serving downtown Dallas and the adjacent Arts District.
-
D.
Central Avenue station
Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
-
E.
Sullivan Square station
Sullivan Square station is a major multimodal transit hub in Boston, Massachusetts, serving MBTA Orange Line trains and numerous bus routes that connect the city and surrounding areas.
- 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_69a493355dec819098d4244b2fa34885 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a49fd1f0ec819087003d30bbab2fa6 |
completed | March 1, 2026, 8:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac5e92d6b0819091fad60317eee455 |
completed | March 7, 2026, 5:21 p.m. |
| NEDg | Description generation | batch_69ac5f06ad4c8190b3b7b65084cc9fe8 |
completed | March 7, 2026, 5:23 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac5f9b8bf48190a42307ab7ef7d803 |
completed | March 7, 2026, 5:25 p.m. |
Created at: March 1, 2026, 7:36 p.m.