Triple

T11001
Position Surface form Disambiguated ID Type / Status
Subject Union Station (Washington, D.C.) E223 entity
Predicate servedByService P1294 FINISHED
Object Northeast Regional
The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
E2775 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: Northeast Regional | Statement: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northeast Regional
Context triple: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
  • A. New England
    New England is a historic region in the northeastern United States known for its colonial heritage, distinct seasons, and influential role in American culture and politics.
  • B. Eastern Conference
    The Eastern Conference is one of the two primary regional groupings of teams in Major League Soccer, comprising clubs based largely in the eastern United States and Canada.
  • C. Eastern Conference
    The Eastern Conference is one of the two primary conferences in the National Basketball Association (NBA), comprising teams based largely in the eastern United States.
  • D. Northeast Corridor
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • E. Hudson Valley
    Hudson Valley is a scenic region in eastern New York State known for its historic riverfront towns, agriculture and wineries, and proximity to New York City.
  • 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: Northeast Regional
Triple: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
Generated description
The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Northeast Regional
Target entity description: The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
  • A. New England
    New England is a historic region in the northeastern United States known for its colonial heritage, distinct seasons, and influential role in American culture and politics.
  • B. Eastern Conference
    The Eastern Conference is one of the two primary regional groupings of teams in Major League Soccer, comprising clubs based largely in the eastern United States and Canada.
  • C. Eastern Conference
    The Eastern Conference is one of the two primary conferences in the National Basketball Association (NBA), comprising teams based largely in the eastern United States.
  • D. Northeast Corridor chosen
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • E. Hudson Valley
    Hudson Valley is a scenic region in eastern New York State known for its historic riverfront towns, agriculture and wineries, and proximity to New York City.
  • F. None of above.

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_69a23d7ad88c8190bffe8ab091d86642 completed Feb. 28, 2026, 12:57 a.m.
NER Named-entity recognition batch_69a2465b2cf881908bf61c461e04cf6a completed Feb. 28, 2026, 1:35 a.m.
NED1 Entity disambiguation (via context triple) batch_69a262364cf48190b390bab67cee9312 completed Feb. 28, 2026, 3:34 a.m.
NEDg Description generation batch_69a262e524e88190854d3585d6694bc0 completed Feb. 28, 2026, 3:37 a.m.
NED2 Entity disambiguation (via description) batch_69a26357a9d08190972bfc596be2baac completed Feb. 28, 2026, 3:39 a.m.
Created at: Feb. 28, 2026, 1:02 a.m.