Triple
T16171768
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | San Francisco International Airport AirTrain system |
E392455
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object | SFO BART station |
E93519
|
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: SFO BART station | Statement: [San Francisco International Airport AirTrain system, connectsWith, SFO BART station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SFO BART station Context triple: [San Francisco International Airport AirTrain system, connectsWith, SFO BART station]
-
A.
San Francisco International Airport station
chosen
San Francisco International Airport station is a Bay Area Rapid Transit (BART) rail station that directly serves San Francisco International Airport, providing regional transit connections for air travelers.
-
B.
BART West Oakland station
BART West Oakland station is an elevated rapid transit station in Oakland, California, serving as a key junction for multiple Bay Area Rapid Transit lines near the eastern approach to the San Francisco–Oakland Bay Bridge.
-
C.
San Mateo station
San Mateo station is a Caltrain commuter rail stop in San Mateo, California, serving as a key transit point for Peninsula rail passengers between San Francisco and San Jose.
-
D.
San Francisco Caltrain Station
San Francisco Caltrain Station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services connecting the city with the Peninsula and Silicon Valley.
-
E.
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.
- 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_69d87f1d32208190942e4e499a80c18c |
completed | April 10, 2026, 4:39 a.m. |
| NER | Named-entity recognition | batch_69e21eb7ab1481908fc35bfc8c56e5f2 |
completed | April 17, 2026, 11:51 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fff7bd87f08190a9f2a1524e5db2ba |
completed | May 10, 2026, 3:13 a.m. |
Created at: April 10, 2026, 5:02 a.m.