Triple
T2592860
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Peninsula rail corridor |
E58161
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Sunnyvale Station
Sunnyvale Station is a commuter rail station in Sunnyvale, California, serving Caltrain passengers along the San Francisco Peninsula.
|
E291019
|
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: Sunnyvale Station | Statement: [Peninsula rail corridor, hasStation, Sunnyvale Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sunnyvale Station Context triple: [Peninsula rail corridor, hasStation, Sunnyvale Station]
-
A.
Mountain View station
Mountain View station is a commuter rail stop in Mountain View, California, serving as a key transit hub on the Caltrain line and connecting to local light rail and bus services.
-
B.
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.
-
C.
San Mateo station
San Mateo station is a Caltrain commuter rail stop in San Mateo, California, serving as a key transit point for Peninsula rail passengers between San Francisco and San Jose.
-
D.
Alum Rock station
Alum Rock station is a public transit stop in San Jose, California, serving as a terminus on the Santa Clara Valley Transportation Authority (VTA) light rail system.
-
E.
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.
- 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: Sunnyvale Station Triple: [Peninsula rail corridor, hasStation, Sunnyvale Station]
Generated description
Sunnyvale Station is a commuter rail station in Sunnyvale, California, serving Caltrain passengers along the San Francisco Peninsula.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sunnyvale Station Target entity description: Sunnyvale Station is a commuter rail station in Sunnyvale, California, serving Caltrain passengers along the San Francisco Peninsula.
-
A.
Mountain View station
Mountain View station is a commuter rail stop in Mountain View, California, serving as a key transit hub on the Caltrain line and connecting to local light rail and bus services.
-
B.
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.
-
C.
San Mateo station
San Mateo station is a Caltrain commuter rail stop in San Mateo, California, serving as a key transit point for Peninsula rail passengers between San Francisco and San Jose.
-
D.
Alum Rock station
Alum Rock station is a public transit stop in San Jose, California, serving as a terminus on the Santa Clara Valley Transportation Authority (VTA) light rail system.
-
E.
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.
- 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_69ab4ac019c8819094add11c46706e32 |
completed | March 6, 2026, 9:44 p.m. |
| NER | Named-entity recognition | batch_69abd426e2d4819081a07920b4d2a1cc |
completed | March 7, 2026, 7:30 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69afaf3f4c2c8190b9e91b30068bb1c5 |
completed | March 10, 2026, 5:42 a.m. |
| NEDg | Description generation | batch_69afafddb2a081909b891eed7ba5411d |
completed | March 10, 2026, 5:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69afb10304488190a1129efae36b3c4e |
completed | March 10, 2026, 5:49 a.m. |
Created at: March 6, 2026, 9:49 p.m.