Triple

T13338926
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Downeaster (at North Station) E317770 entity
Predicate category P87 FINISHED
Object Amtrak routes
Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
E1034959 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 routes | Statement: [Amtrak Downeaster (at North Station), category, Amtrak routes]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak routes
Context triple: [Amtrak Downeaster (at North Station), category, Amtrak routes]
  • A. 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.
  • B. 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.
  • 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 Silver Star route
    The Amtrak Silver Star route is a long-distance passenger train service running between New York City and Miami, providing intercity rail connections along the U.S. East Coast and through central Florida.
  • E. Amtrak corridor services
    Amtrak corridor services are short- to medium-distance intercity passenger rail routes that connect major cities and regions across the United States with frequent, higher-speed train service.
  • 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 routes
Triple: [Amtrak Downeaster (at North Station), category, Amtrak routes]
Generated description
Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Amtrak routes
Target entity description: Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
  • A. 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.
  • B. 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.
  • 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 Silver Star route
    The Amtrak Silver Star route is a long-distance passenger train service running between New York City and Miami, providing intercity rail connections along the U.S. East Coast and through central Florida.
  • E. Amtrak corridor services
    Amtrak corridor services are short- to medium-distance intercity passenger rail routes that connect major cities and regions across the United States with frequent, higher-speed train service.
  • 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_69d806b5a3c08190b42c267fb092f98a completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d99d01bf8481908cd3a99e5557b972 completed April 11, 2026, 12:59 a.m.
NED1 Entity disambiguation (via context triple) batch_69f71f3bb06c8190beaf6dfbba9ff613 completed May 3, 2026, 10:11 a.m.
NEDg Description generation batch_69f720861728819088bc43753d19bef8 completed May 3, 2026, 10:16 a.m.
NED2 Entity disambiguation (via description) batch_69f7212ca3f48190915d73f987ec60d2 completed May 3, 2026, 10:19 a.m.
Created at: April 9, 2026, 9:31 p.m.