Triple
T76664
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Caltrain |
E1530
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Palo Alto station
Palo Alto station is a major commuter rail stop in Palo Alto, California, serving as a key hub on the Caltrain line between San Francisco and San Jose.
|
E23264
|
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: Palo Alto station | Statement: [Caltrain, hasStation, Palo Alto station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Palo Alto station Context triple: [Caltrain, hasStation, Palo Alto station]
-
A.
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.
-
B.
Millbrae station
Millbrae station is a major intermodal transit hub in Millbrae, California, serving as a connection point between Caltrain commuter rail, BART rapid transit, and other local transportation services.
-
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.
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: Palo Alto station Triple: [Caltrain, hasStation, Palo Alto station]
Generated description
Palo Alto station is a major commuter rail stop in Palo Alto, California, serving as a key hub on the Caltrain line between San Francisco and San Jose.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Palo Alto station Target entity description: Palo Alto station is a major commuter rail stop in Palo Alto, California, serving as a key hub on the Caltrain line between San Francisco and San Jose.
-
A.
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.
-
B.
Millbrae station
Millbrae station is a major intermodal transit hub in Millbrae, California, serving as a connection point between Caltrain commuter rail, BART rapid transit, and other local transportation services.
-
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.
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_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_69a2fcfeaae88190987696a6a6dafe12 |
completed | Feb. 28, 2026, 2:34 p.m. |
| NEDg | Description generation | batch_69a2fd4d08588190b5a7c5ca435bac42 |
completed | Feb. 28, 2026, 2:35 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2fdfceb20819097ee6c75234bd252 |
completed | Feb. 28, 2026, 2:38 p.m. |
Created at: Feb. 28, 2026, 2:06 a.m.