Triple
T3223548
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | West Oakland |
E67567
|
entity |
| Predicate | hasTransportationInfrastructure |
P385
|
FINISHED |
| Object |
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.
|
E338696
|
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: BART West Oakland station | Statement: [West Oakland, hasTransportationInfrastructure, BART West Oakland station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BART West Oakland station Context triple: [West Oakland, hasTransportationInfrastructure, BART West Oakland station]
-
A.
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.
-
B.
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.
-
C.
Lake Merritt BART station
Lake Merritt BART station is an underground Bay Area Rapid Transit station in Oakland, California, serving the Lake Merritt neighborhood and nearby civic and residential areas.
-
D.
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.
-
E.
San Francisco 4th and King Street station
San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
- 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: BART West Oakland station Triple: [West Oakland, hasTransportationInfrastructure, BART West Oakland station]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: BART West Oakland station Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
Lake Merritt BART station
Lake Merritt BART station is an underground Bay Area Rapid Transit station in Oakland, California, serving the Lake Merritt neighborhood and nearby civic and residential areas.
-
D.
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.
-
E.
San Francisco 4th and King Street station
San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
- 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_69ad858b8adc8190ad989712c87a476b |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69adae1ae8f08190880d0f0e8539cdbc |
completed | March 8, 2026, 5:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b2625a22148190927b2a63ae3fc726 |
completed | March 12, 2026, 6:51 a.m. |
| NEDg | Description generation | batch_69b264c6022c81908b3235e88a7ed27f |
completed | March 12, 2026, 7:01 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b268bd0d3c8190a60dda0a9086c0cc |
completed | March 12, 2026, 7:18 a.m. |
Created at: March 8, 2026, 3:08 p.m.