Triple

T5127440
Position Surface form Disambiguated ID Type / Status
Subject U.S. intercity passenger rail network E115617 entity
Predicate includesServiceBrand P34842 FINISHED
Object Amtrak long-distance routes
Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
E496718 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 long-distance routes | Statement: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak long-distance routes]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak long-distance routes
Context triple: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak long-distance routes]
  • A. Amtrak Northeast Corridor routes
    Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
  • B. 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.
  • C. Amtrak
    Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
  • D. U.S. intercity passenger rail network
    The U.S. intercity passenger rail network is a nationwide system of medium- and long-distance train routes, primarily operated by Amtrak, that connects major cities and regions across the United States.
  • E. Amtrak Auto Train
    Amtrak Auto Train is a long-distance passenger rail service that carries both travelers and their personal vehicles nonstop between the Washington, D.C. area and central Florida.
  • 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 long-distance routes
Triple: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak long-distance routes]
Generated description
Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Amtrak long-distance routes
Target entity description: Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
  • A. Amtrak Northeast Corridor routes
    Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
  • B. 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.
  • C. Amtrak
    Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
  • D. U.S. intercity passenger rail network
    The U.S. intercity passenger rail network is a nationwide system of medium- and long-distance train routes, primarily operated by Amtrak, that connects major cities and regions across the United States.
  • E. Amtrak Auto Train
    Amtrak Auto Train is a long-distance passenger rail service that carries both travelers and their personal vehicles nonstop between the Washington, D.C. area and central Florida.
  • 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_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_69bec4beb7b48190a2f4e41a13fdd5f3 completed March 21, 2026, 4:18 p.m.
NEDg Description generation batch_69bec571d5948190b659a7b5038f8bdd completed March 21, 2026, 4:21 p.m.
NED2 Entity disambiguation (via description) batch_69bec973e71c8190a9c043389d627156 completed March 21, 2026, 4:38 p.m.
Created at: March 20, 2026, 1:42 p.m.