Triple

T3629198
Position Surface form Disambiguated ID Type / Status
Subject Pennsylvania Railroad Altoona Works E76912 entity
Predicate railroadShopFor P19147 FINISHED
Object Pennsylvania Railroad passenger cars
Pennsylvania Railroad passenger cars were the fleet of rail coaches used by the Pennsylvania Railroad to carry passengers across its extensive network in the United States.
 E374972 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: Pennsylvania Railroad passenger cars | Statement: [Pennsylvania Railroad Altoona Works, railroadShopFor, Pennsylvania Railroad passenger cars]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pennsylvania Railroad passenger cars
Context triple: [Pennsylvania Railroad Altoona Works, railroadShopFor, Pennsylvania Railroad passenger cars]
  • A. Pennsylvania Railroad freight cars
    Pennsylvania Railroad freight cars were the rolling stock used by the Pennsylvania Railroad to transport goods across its extensive rail network in the United States.
  • B. Standard Passenger Pacific of the PRR
    The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
  • C. PA-3 railcars
    The PA-3 railcars are a series of electric multiple-unit subway cars used on the PATCO Speedline rapid transit system serving the Philadelphia–Camden region.
  • D. PA-2 railcars
    The PA-2 railcars are a generation of electric multiple-unit subway cars built for and operated on the PATCO Speedline rapid transit system serving the Philadelphia–South Jersey region.
  • E. Union Pacific inspection cars
    Union Pacific inspection cars are specially outfitted railroad cars used by the Union Pacific Railroad to carry officials and inspectors for track, infrastructure, and operational evaluations along the rail network.
  • 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: Pennsylvania Railroad passenger cars
Triple: [Pennsylvania Railroad Altoona Works, railroadShopFor, Pennsylvania Railroad passenger cars]
Generated description
Pennsylvania Railroad passenger cars were the fleet of rail coaches used by the Pennsylvania Railroad to carry passengers across its extensive network in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pennsylvania Railroad passenger cars
Target entity description: Pennsylvania Railroad passenger cars were the fleet of rail coaches used by the Pennsylvania Railroad to carry passengers across its extensive network in the United States.
  • A. Pennsylvania Railroad freight cars
    Pennsylvania Railroad freight cars were the rolling stock used by the Pennsylvania Railroad to transport goods across its extensive rail network in the United States.
  • B. Standard Passenger Pacific of the PRR
    The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
  • C. PA-3 railcars
    The PA-3 railcars are a series of electric multiple-unit subway cars used on the PATCO Speedline rapid transit system serving the Philadelphia–Camden region.
  • D. PA-2 railcars
    The PA-2 railcars are a generation of electric multiple-unit subway cars built for and operated on the PATCO Speedline rapid transit system serving the Philadelphia–South Jersey region.
  • E. Union Pacific inspection cars
    Union Pacific inspection cars are specially outfitted railroad cars used by the Union Pacific Railroad to carry officials and inspectors for track, infrastructure, and operational evaluations along the rail network.
  • 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_69ad85dc03948190b35b7189e4175bcc completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc2df2b708190afef6925a53ec551 completed March 8, 2026, 6:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69b44f12c2608190bd0eb25c9df97ec6 completed March 13, 2026, 5:53 p.m.
NEDg Description generation batch_69b45092464c8190b9ad6db8c8845026 completed March 13, 2026, 5:59 p.m.
NED2 Entity disambiguation (via description) batch_69b450f261548190b5cd667b35453dcb completed March 13, 2026, 6:01 p.m.
Created at: March 8, 2026, 3:23 p.m.