Triple
T6299016
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mission District, San Francisco |
E141202
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object |
16th Street Mission BART station
16th Street Mission BART station is an underground rapid transit station on San Francisco’s BART system, located in the heart of the Mission District and serving as a key neighborhood transit hub.
|
E584080
|
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: 16th Street Mission BART station | Statement: [Mission District, San Francisco, servedBy, 16th Street Mission BART station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 16th Street Mission BART station Context triple: [Mission District, San Francisco, servedBy, 16th Street Mission BART station]
-
A.
Powell Street BART/Muni station
Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
-
B.
Civic Center/UN Plaza BART station
Civic Center/UN Plaza BART station is a major underground Bay Area Rapid Transit and Muni Metro hub serving San Francisco’s Civic Center area near City Hall and the United Nations Plaza.
-
C.
Montgomery Street station
Montgomery Street station is a major Bay Area Rapid Transit (BART) and Muni Metro subway station serving downtown San Francisco’s Financial District.
-
D.
BART Embarcadero Station
BART Embarcadero Station is a major underground transit hub in downtown San Francisco serving Bay Area Rapid Transit trains and connecting with Muni Metro light rail lines.
-
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: 16th Street Mission BART station Triple: [Mission District, San Francisco, servedBy, 16th Street Mission BART station]
Generated description
16th Street Mission BART station is an underground rapid transit station on San Francisco’s BART system, located in the heart of the Mission District and serving as a key neighborhood transit hub.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 16th Street Mission BART station Target entity description: 16th Street Mission BART station is an underground rapid transit station on San Francisco’s BART system, located in the heart of the Mission District and serving as a key neighborhood transit hub.
-
A.
Powell Street BART/Muni station
Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
-
B.
Civic Center/UN Plaza BART station
Civic Center/UN Plaza BART station is a major underground Bay Area Rapid Transit and Muni Metro hub serving San Francisco’s Civic Center area near City Hall and the United Nations Plaza.
-
C.
Montgomery Street station
Montgomery Street station is a major Bay Area Rapid Transit (BART) and Muni Metro subway station serving downtown San Francisco’s Financial District.
-
D.
BART Embarcadero Station
BART Embarcadero Station is a major underground transit hub in downtown San Francisco serving Bay Area Rapid Transit trains and connecting with Muni Metro light rail lines.
-
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_69c008cf0ad4819095def81e2bd42f9f |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c0643ddaa48190b3ea8061fc1d9dc4 |
completed | March 22, 2026, 9:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c5e427de4481909f1cad8fae93bc42 |
completed | March 27, 2026, 1:58 a.m. |
| NEDg | Description generation | batch_69c5e67fc1688190ab339960d656708d |
completed | March 27, 2026, 2:07 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c5e6e40c588190898ad952b71e5b11 |
completed | March 27, 2026, 2:09 a.m. |
Created at: March 22, 2026, 4:27 p.m.