Triple
T5127445
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | U.S. intercity passenger rail network |
E115617
|
entity |
| Predicate | includesServiceBrand |
P34842
|
FINISHED |
| Object | Amtrak California Zephyr |
E20719
|
NE FINISHED |
How this triple was built (2 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 California Zephyr | Statement: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak California Zephyr]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak California Zephyr Context triple: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak California Zephyr]
-
A.
Amtrak Coast Starlight
The Amtrak Coast Starlight is a long-distance passenger train running between Seattle and Los Angeles, renowned for its scenic route along the West Coast of the United States.
-
B.
California Zephyr
chosen
The California Zephyr is a long-distance passenger train route in the United States that runs through the Rocky Mountains and Sierra Nevada, often regarded as one of the most scenic rail journeys in North America.
-
C.
Amtrak Empire Builder
The Amtrak Empire Builder is a long-distance passenger train route that runs between Chicago and the Pacific Northwest, offering scenic views of the northern United States.
-
D.
Amtrak Silver Star
Amtrak Silver Star is a long-distance passenger train operated by Amtrak that runs between New York City and Miami, serving major cities along the U.S. East Coast.
-
E.
Amtrak Heartland Flyer
The Amtrak Heartland Flyer is a daily passenger train route that operates between Oklahoma City, Oklahoma, and Fort Worth, Texas, providing regional rail service through the Southern Plains.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69bd444426bc819099ccd23f141e22aa |
completed | March 20, 2026, 12:57 p.m. |
| NER | Named-entity recognition | batch_69bd846dfb908190827fbee5a5ae55e2 |
completed | March 20, 2026, 5:31 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bee06d63f8819081db05c0e5a06276 |
completed | March 21, 2026, 6:16 p.m. |
Created at: March 20, 2026, 1:42 p.m.