Triple
T12709809
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak services at Los Angeles Union Station |
E303686
|
entity |
| Predicate | railLine |
P848
|
FINISHED |
| Object | Pacific Surfliner |
E440071
|
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: Pacific Surfliner | Statement: [Amtrak services at Los Angeles Union Station, railLine, Pacific Surfliner]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pacific Surfliner Context triple: [Amtrak services at Los Angeles Union Station, railLine, Pacific Surfliner]
-
A.
Pacific Surfliner route
chosen
The Pacific Surfliner route is a popular Amtrak passenger rail corridor along the Southern California coast, connecting cities such as San Diego, Los Angeles, and San Luis Obispo.
-
B.
West Coast Express
West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
-
C.
California Zephyr
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.
-
D.
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.
-
E.
SP Coast Line between Los Angeles and San Francisco
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
- 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_69d7bdf084148190ab9d513dc0735af4 |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d96207b2d881908314efc3e350aa78 |
completed | April 10, 2026, 8:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f671b8f43081909d4a8e4241c813a1 |
completed | May 2, 2026, 9:50 p.m. |
Created at: April 9, 2026, 5:23 p.m.