Triple

T91445
Position Surface form Disambiguated ID Type / Status
Subject Croton River E1836 entity
Predicate hasPart P35 FINISHED
Object 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.
 E15369 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: Middle Branch Reservoir | Statement: [Croton River, hasPart, Middle Branch Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Middle Branch Reservoir
Context triple: [Croton River, hasPart, Middle Branch Reservoir]
  • A. East Branch Reservoir
    East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
  • B. 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.
  • C. Hollywood Reservoir
    Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
  • D. Silver Lake
    Silver Lake is a trendy, historically bohemian neighborhood in central Los Angeles known for its reservoir, hillside homes, and vibrant arts, dining, and nightlife scenes.
  • E. Jamaica Pond
    Jamaica Pond is a large freshwater kettle pond and popular recreational area in Boston, known for boating, walking paths, and scenic views within the city’s park system.
  • 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: Middle Branch Reservoir
Triple: [Croton River, hasPart, Middle Branch Reservoir]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Middle Branch Reservoir
Target entity description: 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.
  • A. East Branch Reservoir
    East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
  • B. 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.
  • C. Hollywood Reservoir
    Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
  • D. Silver Lake
    Silver Lake is a trendy, historically bohemian neighborhood in central Los Angeles known for its reservoir, hillside homes, and vibrant arts, dining, and nightlife scenes.
  • E. Jamaica Pond
    Jamaica Pond is a large freshwater kettle pond and popular recreational area in Boston, known for boating, walking paths, and scenic views within the city’s park system.
  • 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_69a24f6c29888190890caa7872d63ac6 completed Feb. 28, 2026, 2:14 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2aa42201881909b236a42e982a696 completed Feb. 28, 2026, 8:41 a.m.
NEDg Description generation batch_69a2abf742d081909f8d79aaacb6b7f8 completed Feb. 28, 2026, 8:48 a.m.
NED2 Entity disambiguation (via description) batch_69a2ac6f577081909dced4081ddb8bcb completed Feb. 28, 2026, 8:50 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.