Triple
T76662
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Caltrain |
E1530
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
San Jose Diridon station
San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
|
E22865
|
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: San Jose Diridon station | Statement: [Caltrain, hasStation, San Jose Diridon station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Jose Diridon station Context triple: [Caltrain, hasStation, San Jose Diridon station]
-
A.
Amtrak Sacramento Valley Station
Amtrak Sacramento Valley Station is the main intercity passenger rail station in Sacramento, California, serving Amtrak trains and regional transit connections.
-
B.
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.
-
C.
Atherton station
Atherton station is a commuter rail stop in Atherton, California, serving Caltrain passengers on the San Francisco Peninsula.
-
D.
Hollywood/Highland station
Hollywood/Highland station is a Los Angeles Metro Rail subway stop on the B Line located in the heart of Hollywood near major attractions like the Dolby Theatre and the Hollywood Walk of Fame.
-
E.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
- 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: San Jose Diridon station Triple: [Caltrain, hasStation, San Jose Diridon station]
Generated description
San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Jose Diridon station Target entity description: San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
-
A.
Amtrak Sacramento Valley Station
Amtrak Sacramento Valley Station is the main intercity passenger rail station in Sacramento, California, serving Amtrak trains and regional transit connections.
-
B.
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.
-
C.
Atherton station
Atherton station is a commuter rail stop in Atherton, California, serving Caltrain passengers on the San Francisco Peninsula.
-
D.
Hollywood/Highland station
Hollywood/Highland station is a Los Angeles Metro Rail subway stop on the B Line located in the heart of Hollywood near major attractions like the Dolby Theatre and the Hollywood Walk of Fame.
-
E.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
- 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_69a24c60d19c8190a1b6c105ca59ef5b |
completed | Feb. 28, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69a24f1d20b88190b66836cc018e52e1 |
completed | Feb. 28, 2026, 2:12 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2f0b0d5f481909987c4d937c7157a |
completed | Feb. 28, 2026, 1:42 p.m. |
| NEDg | Description generation | batch_69a2f12e5f548190a0fb3ca1cb059be1 |
completed | Feb. 28, 2026, 1:44 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2f39599b08190be95c9ec634c5745 |
completed | Feb. 28, 2026, 1:54 p.m. |
Created at: Feb. 28, 2026, 2:06 a.m.