Triple
T6331804
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SJC (Amtrak) |
E142396
|
entity |
| Predicate | usedOn |
P2367
|
FINISHED |
| Object |
Amtrak website
The Amtrak website is the official online platform for the United States’ national passenger rail service, providing schedules, ticket booking, service updates, and travel information for routes across the country.
|
E585762
|
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 website | Statement: [SJC (Amtrak), usedOn, Amtrak website]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak website Context triple: [SJC (Amtrak), usedOn, Amtrak website]
-
A.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
B.
Amtrak reservation system
The Amtrak reservation system is the centralized platform used to search, book, and manage tickets and seat reservations for Amtrak’s passenger rail services across the United States.
-
C.
Amtrak state-supported routes program
The Amtrak state-supported routes program is a funding and operational framework in which U.S. states partner with Amtrak to subsidize and manage shorter-distance intercity passenger rail services beyond the federally supported long-distance network.
-
D.
Amtrak (station facility)
Amtrak (station facility) is the United States’ national passenger rail service operator that manages and maintains train stations and related passenger facilities across its network.
-
E.
Amtrak Guest Rewards loyalty program
Amtrak Guest Rewards is Amtrak’s loyalty program that allows passengers to earn and redeem points for train travel, upgrades, and other travel-related rewards.
- 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 website Triple: [SJC (Amtrak), usedOn, Amtrak website]
Generated description
The Amtrak website is the official online platform for the United States’ national passenger rail service, providing schedules, ticket booking, service updates, and travel information for routes across the country.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Amtrak website Target entity description: The Amtrak website is the official online platform for the United States’ national passenger rail service, providing schedules, ticket booking, service updates, and travel information for routes across the country.
-
A.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
B.
Amtrak reservation system
The Amtrak reservation system is the centralized platform used to search, book, and manage tickets and seat reservations for Amtrak’s passenger rail services across the United States.
-
C.
Amtrak state-supported routes program
The Amtrak state-supported routes program is a funding and operational framework in which U.S. states partner with Amtrak to subsidize and manage shorter-distance intercity passenger rail services beyond the federally supported long-distance network.
-
D.
Amtrak (station facility)
Amtrak (station facility) is the United States’ national passenger rail service operator that manages and maintains train stations and related passenger facilities across its network.
-
E.
Amtrak Guest Rewards loyalty program
Amtrak Guest Rewards is Amtrak’s loyalty program that allows passengers to earn and redeem points for train travel, upgrades, and other travel-related rewards.
- 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_69c008d4d8e88190ad301c05b08722ac |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c0651634b08190b54860ba0a70f5c4 |
completed | March 22, 2026, 9:54 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6041f713c8190b27ba54181049377 |
completed | March 27, 2026, 4:14 a.m. |
| NEDg | Description generation | batch_69c604d3839081909f98c37f0fe8f0af |
completed | March 27, 2026, 4:17 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6054d2e388190a4bafffce879b039 |
completed | March 27, 2026, 4:19 a.m. |
Created at: March 22, 2026, 4:30 p.m.