Triple

T658163
Position Surface form Disambiguated ID Type / Status
Subject New Brunswick station E11693 entity
Predicate hasService P182 FINISHED
Object Keystone Service (select trains)
Keystone Service (select trains) is an Amtrak regional passenger rail service operating primarily between New York City and Harrisburg via Philadelphia, with only certain trains stopping at New Brunswick station.
 E82501 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: Keystone Service (select trains) | Statement: [New Brunswick station, hasService, Keystone Service (select trains)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Keystone Service (select trains)
Context triple: [New Brunswick station, hasService, Keystone Service (select trains)]
  • A. Trinity Railway Express
    Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
  • B. Amtrak Lake Shore Limited
    Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
  • C. Amtrak Ethan Allen Express
    The Amtrak Ethan Allen Express is an intercity passenger train service that operates between New York City and Vermont, providing a key rail connection through the Hudson Valley and upstate New York.
  • D. 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.
  • E. New Mexico Rail Runner Express
    The New Mexico Rail Runner Express is a commuter rail service that connects major cities and communities in central New Mexico, including Albuquerque and Santa Fe.
  • 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: Keystone Service (select trains)
Triple: [New Brunswick station, hasService, Keystone Service (select trains)]
Generated description
Keystone Service (select trains) is an Amtrak regional passenger rail service operating primarily between New York City and Harrisburg via Philadelphia, with only certain trains stopping at New Brunswick station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Keystone Service (select trains)
Target entity description: Keystone Service (select trains) is an Amtrak regional passenger rail service operating primarily between New York City and Harrisburg via Philadelphia, with only certain trains stopping at New Brunswick station.
  • A. Trinity Railway Express
    Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
  • B. Amtrak Lake Shore Limited
    Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
  • C. Amtrak Ethan Allen Express
    The Amtrak Ethan Allen Express is an intercity passenger train service that operates between New York City and Vermont, providing a key rail connection through the Hudson Valley and upstate New York.
  • D. 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.
  • E. New Mexico Rail Runner Express
    The New Mexico Rail Runner Express is a commuter rail service that connects major cities and communities in central New Mexico, including Albuquerque and Santa Fe.
  • 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_69a4932862a0819098be659c814e4981 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a49fa55e048190bd9913c6c31772d0 completed March 1, 2026, 8:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69a5c39453208190928b61ad090e7e23 completed March 2, 2026, 5:06 p.m.
NEDg Description generation batch_69a5c4ef88388190b9746f599cf88a35 completed March 2, 2026, 5:12 p.m.
NED2 Entity disambiguation (via description) batch_69a5ce75386081909d780586dcdf0e5a completed March 2, 2026, 5:52 p.m.
Created at: March 1, 2026, 7:36 p.m.