Triple

T4561576
Position Surface form Disambiguated ID Type / Status
Subject USRA standard freight car designs E121802 entity
Predicate hasPart P35 FINISHED
Object USRA 50-ton flatcar
The USRA 50-ton flatcar was a standardized World War I–era American railroad freight car design used widely for hauling heavy and oversized loads.
 E121802 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: USRA 50-ton flatcar | Statement: [USRA standard freight car designs, hasPart, USRA 50-ton flatcar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: USRA 50-ton flatcar
Context triple: [USRA standard freight car designs, hasPart, USRA 50-ton 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. USRA standard freight car designs
    USRA standard freight car designs were a series of standardized freight car types created during World War I to simplify and unify railroad equipment across U.S. railroads.
  • 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. 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.
  • 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: USRA 50-ton flatcar
Triple: [USRA standard freight car designs, hasPart, USRA 50-ton flatcar]
Generated description
The USRA 50-ton flatcar was a standardized World War I–era American railroad freight car design used widely for hauling heavy and oversized loads.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: USRA 50-ton flatcar
Target entity description: The USRA 50-ton flatcar was a standardized World War I–era American railroad freight car design used widely for hauling heavy and oversized 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. USRA standard freight car designs chosen
    USRA standard freight car designs were a series of standardized freight car types created during World War I to simplify and unify railroad equipment across U.S. railroads.
  • 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. 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.
  • 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_69bd463f156881908a99aca69c5721ac completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd582d98fc8190a760dbb5f20c775d completed March 20, 2026, 2:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69be101bf95881908242672ab60e873f completed March 21, 2026, 3:27 a.m.
NEDg Description generation batch_69be1571333881908355cdbc979a4fee completed March 21, 2026, 3:50 a.m.
NED2 Entity disambiguation (via description) batch_69be15c3e4648190a8c29306261ad5c7 completed March 21, 2026, 3:51 a.m.
Created at: March 20, 2026, 1:09 p.m.