Triple

T3642549
Position Surface form Disambiguated ID Type / Status
Subject PRR T1 E77221 entity
Predicate builder P3143 FINISHED
Object Pennsylvania Railroad Altoona Works E76912 NE FINISHED

How this triple was built (2 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 Altoona Works | Statement: [PRR T1, builder, Pennsylvania Railroad Altoona Works]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pennsylvania Railroad Altoona Works
Context triple: [PRR T1, builder, Pennsylvania Railroad Altoona Works]
  • A. Pennsylvania Railroad Altoona Works chosen
    Pennsylvania Railroad Altoona Works was a major locomotive and railcar manufacturing and maintenance complex in Altoona, Pennsylvania, renowned as one of the most important railroad shops in the United States.
  • B. Pittsburgh Locomotive and Car Works
    Pittsburgh Locomotive and Car Works was a prominent 19th-century American manufacturer of steam locomotives and railroad cars that later became part of the American Locomotive Company.
  • C. Manchester Locomotive Works
    Manchester Locomotive Works was a prominent 19th-century American manufacturer of steam locomotives that later became part of the American Locomotive Company (ALCO).
  • D. Schenectady Locomotive Works
    Schenectady Locomotive Works was a prominent 19th-century American manufacturer of steam locomotives based in Schenectady, New York, that later became a key component of the American Locomotive Company (ALCO).
  • E. Pittsburgh Railways
    Pittsburgh Railways was a major streetcar and public transit operator in Pittsburgh, Pennsylvania, known for running one of the largest PCC streetcar fleets in the United States.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69ad85de1b988190a45f8dbfebc806fc completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc359a91481908aef1c022f45e55c completed March 8, 2026, 6:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69b48834d22081908687b250af859c6b completed March 13, 2026, 9:57 p.m.
Created at: March 8, 2026, 3:24 p.m.