Triple

T91460
Position Surface form Disambiguated ID Type / Status
Subject Croton River E1836 entity
Predicate hasStructureOnWatercourse P4361 FINISHED
Object Croton Falls Dam
Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
E17789 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: Croton Falls Dam | Statement: [Croton River, hasStructureOnWatercourse, Croton Falls Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Croton Falls Dam
Context triple: [Croton River, hasStructureOnWatercourse, Croton Falls Dam]
  • A. Croton Falls Reservoir
    Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
  • B. New Croton Dam
    New Croton Dam is a large masonry gravity dam in New York that forms the New Croton Reservoir, a key component of New York City’s water supply system.
  • C. Titicus Reservoir
    Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
  • D. Middle Branch Reservoir
    Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
  • E. Grand Coulee Dam
    Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
  • 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: Croton Falls Dam
Triple: [Croton River, hasStructureOnWatercourse, Croton Falls Dam]
Generated description
Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Croton Falls Dam
Target entity description: Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
  • A. Croton Falls Reservoir
    Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
  • B. New Croton Dam
    New Croton Dam is a large masonry gravity dam in New York that forms the New Croton Reservoir, a key component of New York City’s water supply system.
  • C. Titicus Reservoir
    Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
  • D. Middle Branch Reservoir
    Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
  • E. Grand Coulee Dam
    Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a2567dd770819088eb77ffc6d2d1cf completed Feb. 28, 2026, 2:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2c272c04481909ad035b719ac4798 completed Feb. 28, 2026, 10:24 a.m.
NEDg Description generation batch_69a2c44e144c819084b65ec9283f5ca6 completed Feb. 28, 2026, 10:32 a.m.
NED2 Entity disambiguation (via description) batch_69a2c4a49b288190b10a54aa37160e31 completed Feb. 28, 2026, 10:34 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.