Triple

T5481916
Position Surface form Disambiguated ID Type / Status
Subject Pullman-Standard E123484 entity
Predicate designed P184 FINISHED
Object PS-4 flatcar
The PS-4 flatcar is a class of railroad flatcar known for its standardized, heavy-duty design used to transport large or bulky freight loads.
 E523143 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: PS-4 flatcar | Statement: [Pullman-Standard, designed, PS-4 flatcar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: PS-4 flatcar
Context triple: [Pullman-Standard, designed, PS-4 flatcar]
  • A. PA5 railcar
    The PA5 railcar is a modern electric multiple unit train used on the PATH rapid transit system serving New York and New Jersey.
  • B. 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.
  • C. 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.
  • D. PA-1 railcars
    The PA-1 railcars are an early 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. Amfleet railcar family
    The Amfleet railcar family is a series of stainless-steel, tubular passenger coaches built by Budd for Amtrak in the 1970s and 1980s, widely used on intercity and regional routes across the United States.
  • 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: PS-4 flatcar
Triple: [Pullman-Standard, designed, PS-4 flatcar]
Generated description
The PS-4 flatcar is a class of railroad flatcar known for its standardized, heavy-duty design used to transport large or bulky freight loads.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: PS-4 flatcar
Target entity description: The PS-4 flatcar is a class of railroad flatcar known for its standardized, heavy-duty design used to transport large or bulky freight loads.
  • A. PA5 railcar
    The PA5 railcar is a modern electric multiple unit train used on the PATH rapid transit system serving New York and New Jersey.
  • B. 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.
  • C. 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.
  • D. PA-1 railcars
    The PA-1 railcars are an early 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. Amfleet railcar family
    The Amfleet railcar family is a series of stainless-steel, tubular passenger coaches built by Budd for Amtrak in the 1970s and 1980s, widely used on intercity and regional routes across the United States.
  • 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_69bd4648883481909e9775d43300c5fa completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd924bac088190b7d08df91534b0bc completed March 20, 2026, 6:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf48a2880c8190ad76cf8c3862aede completed March 22, 2026, 1:40 a.m.
NEDg Description generation batch_69bf4a95375881909ba730ad108eee8b completed March 22, 2026, 1:49 a.m.
NED2 Entity disambiguation (via description) batch_69bf4afb47a88190a66de6b6c7d5c241 completed March 22, 2026, 1:50 a.m.
Created at: March 20, 2026, 2:09 p.m.