Triple

T23211046
Position Surface form Disambiguated ID Type / Status
Subject Fairfax Water E580594 entity
Predicate operatesFacility P4904 FINISHED
Object Corbalis Water Treatment Plant
Corbalis Water Treatment Plant is a major drinking water treatment facility in Northern Virginia that supplies treated potable water to Fairfax County and surrounding communities.
 E1575193 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: Corbalis Water Treatment Plant | Statement: [Fairfax Water, operatesFacility, Corbalis Water Treatment Plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Corbalis Water Treatment Plant
Context triple: [Fairfax Water, operatesFacility, Corbalis Water Treatment Plant]
  • A. Magathane Water Treatment Plant
    Magathane Water Treatment Plant is a major facility in Mumbai responsible for treating and supplying potable water to surrounding urban areas.
  • B. Brown Water Treatment Plant
    The Brown Water Treatment Plant is a key facility that treats and supplies drinking water as part of the Durham municipal water system.
  • C. Sunol Valley Water Treatment Plant
    The Sunol Valley Water Treatment Plant is a major facility in California’s East Bay that treats and supplies drinking water to the San Francisco Bay Area.
  • D. Harry Tracy Water Treatment Plant
    The Harry Tracy Water Treatment Plant is a major drinking water facility serving the San Francisco Bay Area, providing treated water to local communities as part of the regional Hetch Hetchy system.
  • E. Bouse Hills Pumping Plant
    Bouse Hills Pumping Plant is a major water-lifting facility within the Central Arizona Project system that helps convey Colorado River water across central Arizona.
  • 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: Corbalis Water Treatment Plant
Triple: [Fairfax Water, operatesFacility, Corbalis Water Treatment Plant]
Generated description
Corbalis Water Treatment Plant is a major drinking water treatment facility in Northern Virginia that supplies treated potable water to Fairfax County and surrounding communities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Corbalis Water Treatment Plant
Target entity description: Corbalis Water Treatment Plant is a major drinking water treatment facility in Northern Virginia that supplies treated potable water to Fairfax County and surrounding communities.
  • A. Magathane Water Treatment Plant
    Magathane Water Treatment Plant is a major facility in Mumbai responsible for treating and supplying potable water to surrounding urban areas.
  • B. Brown Water Treatment Plant
    The Brown Water Treatment Plant is a key facility that treats and supplies drinking water as part of the Durham municipal water system.
  • C. Sunol Valley Water Treatment Plant
    The Sunol Valley Water Treatment Plant is a major facility in California’s East Bay that treats and supplies drinking water to the San Francisco Bay Area.
  • D. Harry Tracy Water Treatment Plant
    The Harry Tracy Water Treatment Plant is a major drinking water facility serving the San Francisco Bay Area, providing treated water to local communities as part of the regional Hetch Hetchy system.
  • E. Bouse Hills Pumping Plant
    Bouse Hills Pumping Plant is a major water-lifting facility within the Central Arizona Project system that helps convey Colorado River water across central Arizona.
  • 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_69e24602ae1481908aaa6bc7ca493867 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f191614bc4819080938752d843dcc6 completed April 29, 2026, 5:04 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c30c6a3688190a6569c98399d334f completed May 19, 2026, 9:43 a.m.
NEDg Description generation batch_6a0c3301e2d08190929ff173d720ebee completed May 19, 2026, 9:53 a.m.
NED2 Entity disambiguation (via description) batch_6a0c3793c0d481908afb12f0cbf56f9b completed May 19, 2026, 10:12 a.m.
Created at: April 17, 2026, 4:07 p.m.