Triple

T21897
Position Surface form Disambiguated ID Type / Status
Subject Pennsylvania Railroad Company E435 entity
Predicate owned P347 FINISHED
Object Long Island Rail Road (controlling interest for many years)
The Long Island Rail Road is a major commuter rail system serving Long Island and connecting it to New York City, recognized as one of the busiest and oldest railroads in the United States.
E2989 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: Long Island Rail Road (controlling interest for many years) | Statement: [Pennsylvania Railroad Company, owned, Long Island Rail Road (controlling interest for many years)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Long Island Rail Road (controlling interest for many years)
Context triple: [Pennsylvania Railroad Company, owned, Long Island Rail Road (controlling interest for many years)]
  • A. New York City Subway
    The New York City Subway is one of the world’s largest and busiest rapid transit systems, serving the five boroughs of New York City with extensive 24/7 underground and elevated rail service.
  • B. AirTrain JFK
    AirTrain JFK is an elevated people mover system in New York City that links John F. Kennedy International Airport with nearby subway, commuter rail, and parking facilities.
  • C. Amtrak
    Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
  • D. Pennsylvania Railroad Company
    The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
  • E. Belmont Center station
    Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
  • 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: Long Island Rail Road (controlling interest for many years)
Triple: [Pennsylvania Railroad Company, owned, Long Island Rail Road (controlling interest for many years)]
Generated description
The Long Island Rail Road is a major commuter rail system serving Long Island and connecting it to New York City, recognized as one of the busiest and oldest railroads in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Long Island Rail Road (controlling interest for many years)
Target entity description: The Long Island Rail Road is a major commuter rail system serving Long Island and connecting it to New York City, recognized as one of the busiest and oldest railroads in the United States.
  • A. New York City Subway
    The New York City Subway is one of the world’s largest and busiest rapid transit systems, serving the five boroughs of New York City with extensive 24/7 underground and elevated rail service.
  • B. AirTrain JFK
    AirTrain JFK is an elevated people mover system in New York City that links John F. Kennedy International Airport with nearby subway, commuter rail, and parking facilities.
  • C. Amtrak
    Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
  • D. Pennsylvania Railroad Company
    The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
  • E. Belmont Center station
    Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
  • 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_69a243b4ac2c8190b93c303df797b7b2 completed Feb. 28, 2026, 1:24 a.m.
NER Named-entity recognition batch_69a2466ab310819091842a0ea9fd25de completed Feb. 28, 2026, 1:35 a.m.
NED1 Entity disambiguation (via context triple) batch_69a24e59b35c8190a192ed9095a8756d completed Feb. 28, 2026, 2:09 a.m.
NEDg Description generation batch_69a24edf06688190963f6812d173d56e completed Feb. 28, 2026, 2:11 a.m.
NED2 Entity disambiguation (via description) batch_69a24fec71908190813a1e322bbbdbb6 completed Feb. 28, 2026, 2:16 a.m.
Created at: Feb. 28, 2026, 1:34 a.m.