Triple

T3604245
Position Surface form Disambiguated ID Type / Status
Subject PRR K4s E76330 entity
Predicate valveGear P49897 FINISHED
Object Walschaerts
Walschaerts valve gear is a widely used steam locomotive valve gear mechanism, developed in the 19th century, that precisely controls steam admission and exhaust to the cylinders.
E371412 NE FINISHED

How this triple was built (5 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: Walschaerts | Statement: [PRR K4s, valveGear, Walschaerts]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Walschaerts
Context triple: [PRR K4s, valveGear, Walschaerts]
  • A. Gottlieb Duttweiler
    Gottlieb Duttweiler was a Swiss entrepreneur, social reformer, and founder of the Migros retail cooperative, known for his pioneering role in making consumer goods more accessible to the public.
  • B. Suter
    Suter is a surname of Germanic origin, often associated with individuals of Swiss or German heritage.
  • C. William Arrol
    William Arrol was a prominent Scottish civil engineer and bridge builder renowned for leading the construction of major late-19th-century steel structures, including iconic railway bridges in the United Kingdom.
  • D. August Borsig
    August Borsig was a prominent 19th-century German industrialist and engineer best known for founding the Borsig company, one of Europe’s leading locomotive manufacturers.
  • E. Watt steam engine
    The Watt steam engine was a vastly improved steam engine developed in the late 18th century that greatly increased efficiency and helped power the Industrial Revolution.
  • 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: Walschaerts
Triple: [PRR K4s, valveGear, Walschaerts]
Generated description
Walschaerts valve gear is a widely used steam locomotive valve gear mechanism, developed in the 19th century, that precisely controls steam admission and exhaust to the cylinders.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Walschaerts
Target entity description: Walschaerts valve gear is a widely used steam locomotive valve gear mechanism, developed in the 19th century, that precisely controls steam admission and exhaust to the cylinders.
  • A. Gottlieb Duttweiler
    Gottlieb Duttweiler was a Swiss entrepreneur, social reformer, and founder of the Migros retail cooperative, known for his pioneering role in making consumer goods more accessible to the public.
  • B. Suter
    Suter is a surname of Germanic origin, often associated with individuals of Swiss or German heritage.
  • C. William Arrol
    William Arrol was a prominent Scottish civil engineer and bridge builder renowned for leading the construction of major late-19th-century steel structures, including iconic railway bridges in the United Kingdom.
  • D. August Borsig
    August Borsig was a prominent 19th-century German industrialist and engineer best known for founding the Borsig company, one of Europe’s leading locomotive manufacturers.
  • E. Watt steam engine
    The Watt steam engine was a vastly improved steam engine developed in the late 18th century that greatly increased efficiency and helped power the Industrial Revolution.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: valveGear
Context triple: [PRR K4s, valveGear, Walschaerts]
  • A. valvesPerCylinder
    Indicates the number of valves associated with each individual cylinder in an engine.
  • B. shaftCount
    Indicates the number of shafts associated with or contained in an object or system.
  • C. shaftHeight
    Indicates the vertical extent or length of a shaft from its base to its top.
  • D. cylinderHeadBrand
    Indicates the brand or manufacturer associated with a cylinder head.
  • E. shaftOrientation
    Indicates the directional alignment or angle at which a shaft is positioned or oriented relative to a reference frame or object.
  • F. None of above. chosen

Provenance (7 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_69ad85d93dcc819094fba90cf70f4996 completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc1e07bc481908d9fce18d36d8e0d completed March 8, 2026, 6:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69b40320a0308190b2f358fe1488ed98 completed March 13, 2026, 12:29 p.m.
NEDg Description generation batch_69b4041bc85c8190948b7e47aef0e0d0 completed March 13, 2026, 12:33 p.m.
NED2 Entity disambiguation (via description) batch_69b408778220819086935bfa9c0dd4fd completed March 13, 2026, 12:52 p.m.
PD Predicate disambiguation batch_69adb83d8b1c8190b3bddbc5dc995a87 completed March 8, 2026, 5:56 p.m.
PDg Predicate description generation batch_69adb8e4ba948190a9b777cf7f788b96 completed March 8, 2026, 5:59 p.m.
Created at: March 8, 2026, 3:22 p.m.