Triple
T4047956
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Transbay Tube |
E84112
|
entity |
| Predicate | isCriticalInfrastructureFor |
P7519
|
FINISHED |
| Object |
Transbay BART service
Transbay BART service is the Bay Area Rapid Transit rail operation that carries passengers between San Francisco and the East Bay across San Francisco Bay.
|
E12820
|
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: Transbay BART service | Statement: [Transbay Tube, isCriticalInfrastructureFor, Transbay BART service]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Transbay BART service Context triple: [Transbay Tube, isCriticalInfrastructureFor, Transbay BART service]
-
A.
BART
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
-
B.
BART Antioch–SFO+Millbrae line
The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
-
C.
BART Green Line
The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
-
D.
BART Orange Line
The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
-
E.
BART Transbay Zone 1
BART Transbay Zone 1 is a core fare zone in the Bay Area Rapid Transit system that covers central transbay stations in the San Francisco financial district and nearby 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: Transbay BART service Triple: [Transbay Tube, isCriticalInfrastructureFor, Transbay BART service]
Generated description
Transbay BART service is the Bay Area Rapid Transit rail operation that carries passengers between San Francisco and the East Bay across San Francisco Bay.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Transbay BART service Target entity description: Transbay BART service is the Bay Area Rapid Transit rail operation that carries passengers between San Francisco and the East Bay across San Francisco Bay.
-
A.
BART
chosen
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
-
B.
BART Antioch–SFO+Millbrae line
The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
-
C.
BART Green Line
The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
-
D.
BART Orange Line
The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
-
E.
BART Transbay Zone 1
BART Transbay Zone 1 is a core fare zone in the Bay Area Rapid Transit system that covers central transbay stations in the San Francisco financial district and nearby areas.
- F. None of above.
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_69aed930bd5c819083e7dcc14fc44f69 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aefb81040481909b22e4c445ecae0f |
completed | March 9, 2026, 4:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5565466648190802a9b8fd88c3572 |
completed | March 14, 2026, 12:36 p.m. |
| NEDg | Description generation | batch_69b556cdd05081909fea1fb0a58bc7d1 |
completed | March 14, 2026, 12:38 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b557d445d081908f48fe3bd06f786e |
completed | March 14, 2026, 12:43 p.m. |
Created at: March 9, 2026, 3:37 p.m.