Triple
T5617758
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | T Third Street |
E147519
|
entity |
| Predicate | hasStop |
P17789
|
FINISHED |
| Object |
UCSF Mission Bay Station
UCSF Mission Bay Station is a light rail stop on San Francisco’s T Third Street line serving the UCSF Mission Bay campus and surrounding neighborhood.
|
E531087
|
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: UCSF Mission Bay Station | Statement: [T Third Street, hasStop, UCSF Mission Bay Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: UCSF Mission Bay Station Context triple: [T Third Street, hasStop, UCSF Mission Bay Station]
-
A.
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.
-
B.
San Francisco International Airport station
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.
-
C.
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.
-
D.
Broadway Caltrain station
Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
-
E.
MacArthur BART station
MacArthur BART station is a major Bay Area Rapid Transit hub in Oakland, California, serving as a key transfer point for multiple lines and regional commuters.
- 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: UCSF Mission Bay Station Triple: [T Third Street, hasStop, UCSF Mission Bay Station]
Generated description
UCSF Mission Bay Station is a light rail stop on San Francisco’s T Third Street line serving the UCSF Mission Bay campus and surrounding neighborhood.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: UCSF Mission Bay Station Target entity description: UCSF Mission Bay Station is a light rail stop on San Francisco’s T Third Street line serving the UCSF Mission Bay campus and surrounding neighborhood.
-
A.
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.
-
B.
San Francisco International Airport station
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.
-
C.
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.
-
D.
Broadway Caltrain station
Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
-
E.
MacArthur BART station
MacArthur BART station is a major Bay Area Rapid Transit hub in Oakland, California, serving as a key transfer point for multiple lines and regional commuters.
- 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_69c00905d4588190bd967842bbcf2219 |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c021dc04c081909f36e40394e7c955 |
completed | March 22, 2026, 5:07 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0287d9d7081909a1b2510565b55fc |
completed | March 22, 2026, 5:35 p.m. |
| NEDg | Description generation | batch_69c03894b9388190bd534ad107722b83 |
completed | March 22, 2026, 6:44 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c0393144248190a97d1f82b81cc868 |
completed | March 22, 2026, 6:47 p.m. |
Created at: March 22, 2026, 3:40 p.m.