Triple

T21702182
Position Surface form Disambiguated ID Type / Status
Subject Eastney E535684 entity
Predicate hasFeature P182 FINISHED
Object Eastney Gas Engine House
Eastney Gas Engine House is a historic former gas-powered pumping station in Portsmouth, England, now preserved as an industrial heritage site and museum.
E1496430 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: Eastney Gas Engine House | Statement: [Eastney, hasFeature, Eastney Gas Engine House]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Eastney Gas Engine House
Context triple: [Eastney, hasFeature, Eastney Gas Engine House]
  • A. Middleton Top engine house
    Middleton Top engine house is a preserved 19th-century steam-powered winding engine building in Derbyshire, England, that served the Cromford and High Peak Railway and now operates as a heritage attraction.
  • B. Fakenham gasworks
    Fakenham gasworks is a historic former gas production site in Fakenham, England, now preserved as part of a museum showcasing the town’s industrial and local heritage.
  • C. Plymouth Friary engine shed
    Plymouth Friary engine shed was a locomotive depot in Plymouth, England, that serviced and maintained steam and later diesel engines for trains operating in the region.
  • D. St Blazey engine shed
    St Blazey engine shed was a railway locomotive depot in St Blazey, Cornwall, that served as a key maintenance and stabling facility for Great Western Railway and later British Rail engines.
  • E. Faraday Powerhouse
    Faraday Powerhouse is a hydroelectric generating facility associated with Faraday Dam that converts the dam’s stored water energy into electrical power.
  • 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: Eastney Gas Engine House
Triple: [Eastney, hasFeature, Eastney Gas Engine House]
Generated description
Eastney Gas Engine House is a historic former gas-powered pumping station in Portsmouth, England, now preserved as an industrial heritage site and museum.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Eastney Gas Engine House
Target entity description: Eastney Gas Engine House is a historic former gas-powered pumping station in Portsmouth, England, now preserved as an industrial heritage site and museum.
  • A. Middleton Top engine house
    Middleton Top engine house is a preserved 19th-century steam-powered winding engine building in Derbyshire, England, that served the Cromford and High Peak Railway and now operates as a heritage attraction.
  • B. Fakenham gasworks
    Fakenham gasworks is a historic former gas production site in Fakenham, England, now preserved as part of a museum showcasing the town’s industrial and local heritage.
  • C. Plymouth Friary engine shed
    Plymouth Friary engine shed was a locomotive depot in Plymouth, England, that serviced and maintained steam and later diesel engines for trains operating in the region.
  • D. St Blazey engine shed
    St Blazey engine shed was a railway locomotive depot in St Blazey, Cornwall, that served as a key maintenance and stabling facility for Great Western Railway and later British Rail engines.
  • E. Faraday Powerhouse
    Faraday Powerhouse is a hydroelectric generating facility associated with Faraday Dam that converts the dam’s stored water energy into electrical power.
  • 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_69e0c46b44c0819088ab883ebd44e0e8 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef9b8161348190842c433531cfaa5b completed April 27, 2026, 5:23 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a1e2937688190a8a989ada1101a07 completed May 17, 2026, 7:59 p.m.
NEDg Description generation batch_6a0a1ebd2bbc819083021cbc5873bfed completed May 17, 2026, 8:02 p.m.
NED2 Entity disambiguation (via description) batch_6a0a1fa12dbc8190a263b12f75ef073b completed May 17, 2026, 8:05 p.m.
Created at: April 16, 2026, 6:45 p.m.