Triple

T1121982
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Northeast Regional E24631 entity
Predicate railwayLineUsed P848 FINISHED
Object New Haven–Springfield Line
The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
E134127 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: New Haven–Springfield Line | Statement: [Amtrak Northeast Regional, railwayLineUsed, New Haven–Springfield Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: New Haven–Springfield Line
Context triple: [Amtrak Northeast Regional, railwayLineUsed, New Haven–Springfield Line]
  • A. Connecticut River Line
    The Connecticut River Line is a historic railroad corridor running along the Connecticut River in New England, long used for passenger and freight service connecting communities in Massachusetts, Vermont, and New Hampshire.
  • B. Boston–Portland main line
    The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
  • C. Boston–Concord main line
    The Boston–Concord main line was a principal intercity rail corridor in New England that connected Boston, Massachusetts with Concord, New Hampshire, serving as a key route for the Boston and Maine Railroad.
  • D. New York, New Haven and Hartford Railroad
    The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
  • E. White Plains Road Line
    The White Plains Road Line is a major New York City Subway route in the Bronx, primarily served by the 2 and 5 trains and running along White Plains Road.
  • 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: New Haven–Springfield Line
Triple: [Amtrak Northeast Regional, railwayLineUsed, New Haven–Springfield Line]
Generated description
The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: New Haven–Springfield Line
Target entity description: The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
  • A. Connecticut River Line
    The Connecticut River Line is a historic railroad corridor running along the Connecticut River in New England, long used for passenger and freight service connecting communities in Massachusetts, Vermont, and New Hampshire.
  • B. Boston–Portland main line
    The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
  • C. Boston–Concord main line
    The Boston–Concord main line was a principal intercity rail corridor in New England that connected Boston, Massachusetts with Concord, New Hampshire, serving as a key route for the Boston and Maine Railroad.
  • D. New York, New Haven and Hartford Railroad
    The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
  • E. White Plains Road Line
    The White Plains Road Line is a major New York City Subway route in the Bronx, primarily served by the 2 and 5 trains and running along White Plains Road.
  • 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_69a4940712c88190aa244f3fc6070a65 completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bbbf71188190b82c8fff9d5ac01a completed March 1, 2026, 10:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac667127008190b2aa1f3aafc87340 completed March 7, 2026, 5:54 p.m.
NEDg Description generation batch_69ac66f0e874819092d51913f08905d4 completed March 7, 2026, 5:57 p.m.
NED2 Entity disambiguation (via description) batch_69ac676cb9a08190a83d47de80126677 completed March 7, 2026, 5:59 p.m.
Created at: March 1, 2026, 7:44 p.m.