Triple

T24745115
Position Surface form Disambiguated ID Type / Status
Subject North Coast Limited E618673 entity
Predicate successor P78 FINISHED
Object Amtrak North Coast Hiawatha
Amtrak North Coast Hiawatha was a former long-distance passenger train operated by Amtrak that ran between Chicago and the Pacific Northwest along a route similar to the historic North Coast Limited.
 E1654392 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 North Coast Hiawatha | Statement: [North Coast Limited, successor, Amtrak North Coast Hiawatha]
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 North Coast Hiawatha
Triple: [North Coast Limited, successor, Amtrak North Coast Hiawatha]
Generated description
Amtrak North Coast Hiawatha was a former long-distance passenger train operated by Amtrak that ran between Chicago and the Pacific Northwest along a route similar to the historic North Coast Limited.

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_69e2fab8f95c81908bb9e552cf3280c2 completed April 18, 2026, 3:30 a.m.
NER Named-entity recognition batch_69f410591efc81908f7e561d74eb3827 completed May 1, 2026, 2:30 a.m.
NED1 Entity disambiguation (via context triple) batch_6a101c030a9c81909368f2986bec3742 completed May 22, 2026, 9:04 a.m.
NEDg Description generation batch_6a1028143b4c8190b89ad73aecb56e0d completed May 22, 2026, 9:55 a.m.
NED2 Entity disambiguation (via description) batch_6a1029a084708190a87c7d2add8f4688 completed May 22, 2026, 10:02 a.m.
Created at: April 18, 2026, 4:21 a.m.