Triple
T76660
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Caltrain |
E1530
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object |
Amtrak Capitol Corridor
Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
|
E13501
|
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: Amtrak Capitol Corridor | Statement: [Caltrain, connectsWith, Amtrak Capitol Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Capitol Corridor Context triple: [Caltrain, connectsWith, Amtrak Capitol Corridor]
-
A.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
-
B.
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.
-
C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
D.
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.
-
E.
BART
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
- 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: Amtrak Capitol Corridor Triple: [Caltrain, connectsWith, Amtrak Capitol Corridor]
Generated description
Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Amtrak Capitol Corridor Target entity description: Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
-
A.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
-
B.
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.
-
C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
D.
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.
-
E.
BART
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
- 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_69a2981ccdc0819093346109c126ea96 |
completed | Feb. 28, 2026, 7:24 a.m. |
| NEDg | Description generation | batch_69a2987873d48190974c9847c3a51586 |
completed | Feb. 28, 2026, 7:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2992eef7881908cb4cff9d91aab98 |
completed | Feb. 28, 2026, 7:28 a.m. |
Created at: Feb. 28, 2026, 2:06 a.m.