Triple
T6676270
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pittsburg, California |
E151859
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object |
Pittsburg Center BART station
Pittsburg Center BART station is an East Bay Area Rapid Transit station in Pittsburg, California, providing regional rail service and connections for commuters in the surrounding area.
|
E612679
|
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: Pittsburg Center BART station | Statement: [Pittsburg, California, servedBy, Pittsburg Center BART station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pittsburg Center BART station Context triple: [Pittsburg, California, servedBy, Pittsburg Center BART station]
-
A.
Lafayette BART station
Lafayette BART station is a Bay Area Rapid Transit rail station in Lafayette, California, serving as a regional commuter hub for travel throughout the San Francisco Bay Area.
-
B.
Bay Point BART station
Bay Point BART station is an elevated rapid transit station in Contra Costa County that serves as the eastern terminus of BART’s Yellow Line in the San Francisco Bay Area.
-
C.
Dublin/Pleasanton BART station
Dublin/Pleasanton BART station is a major Bay Area Rapid Transit terminal in eastern Alameda County that serves as a key regional commuter hub for the cities of Dublin and Pleasanton.
-
D.
Fremont station (BART)
Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
-
E.
Rockridge BART station
Rockridge BART station is an elevated rapid transit station in Oakland, California, serving the Rockridge neighborhood on the Bay Area Rapid 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: Pittsburg Center BART station Triple: [Pittsburg, California, servedBy, Pittsburg Center BART station]
Generated description
Pittsburg Center BART station is an East Bay Area Rapid Transit station in Pittsburg, California, providing regional rail service and connections for commuters in the surrounding area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pittsburg Center BART station Target entity description: Pittsburg Center BART station is an East Bay Area Rapid Transit station in Pittsburg, California, providing regional rail service and connections for commuters in the surrounding area.
-
A.
Lafayette BART station
Lafayette BART station is a Bay Area Rapid Transit rail station in Lafayette, California, serving as a regional commuter hub for travel throughout the San Francisco Bay Area.
-
B.
Bay Point BART station
Bay Point BART station is an elevated rapid transit station in Contra Costa County that serves as the eastern terminus of BART’s Yellow Line in the San Francisco Bay Area.
-
C.
Dublin/Pleasanton BART station
Dublin/Pleasanton BART station is a major Bay Area Rapid Transit terminal in eastern Alameda County that serves as a key regional commuter hub for the cities of Dublin and Pleasanton.
-
D.
Fremont station (BART)
Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
-
E.
Rockridge BART station
Rockridge BART station is an elevated rapid transit station in Oakland, California, serving the Rockridge neighborhood on the Bay Area Rapid 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_69c687f830bc81909eb8b04dbb8450b1 |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6b0f4184481908869354addf4f8c4 |
completed | March 27, 2026, 4:31 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c700772aa48190a1356b5a252f6524 |
completed | March 27, 2026, 10:11 p.m. |
| NEDg | Description generation | batch_69c701db4eb081908db6dd22fbfb28d1 |
completed | March 27, 2026, 10:16 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c7026529ec81909479b826efb5eb54 |
completed | March 27, 2026, 10:19 p.m. |
Created at: March 27, 2026, 2:03 p.m.