Triple

T91422
Position Surface form Disambiguated ID Type / Status
Subject Croton River E1836 entity
Predicate hasPart P35 FINISHED
Object Middle Branch Croton River
The Middle Branch Croton River is a tributary stream in southeastern New York that forms part of the Croton River watershed supplying New York City’s water system.
 E56939 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 Croton River | Statement: [Croton River, hasPart, Middle Branch Croton River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Middle Branch Croton River
Context triple: [Croton River, hasPart, Middle Branch Croton River]
  • A. West Branch Croton River
    West Branch Croton River is a major tributary of New York’s Croton River, flowing through Putnam County and contributing to the New York City water supply system.
  • B. East Branch Croton River
    East Branch Croton River is a major tributary of New York's Croton River system, contributing to the water supply network for New York City.
  • C. Muddy River
    The Muddy River is a small urban waterway in Boston and Brookline, Massachusetts, that forms a key component of Frederick Law Olmsted’s Emerald Necklace park system.
  • D. Wapsinonoc Creek
    Wapsinonoc Creek is a small stream in eastern Iowa that flows through and helps drain the area around the town of West Branch.
  • E. Pocantico River
    The Pocantico River is a small river in Westchester County, New York, that flows through the Rockefeller family’s historic estate and into the Hudson River near Sleepy Hollow.
  • 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 Croton River
Triple: [Croton River, hasPart, Middle Branch Croton River]
Generated description
The Middle Branch Croton River is a tributary stream in southeastern New York that forms part of the Croton River watershed supplying New York City’s water system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Middle Branch Croton River
Target entity description: The Middle Branch Croton River is a tributary stream in southeastern New York that forms part of the Croton River watershed supplying New York City’s water system.
  • A. West Branch Croton River
    West Branch Croton River is a major tributary of New York’s Croton River, flowing through Putnam County and contributing to the New York City water supply system.
  • B. East Branch Croton River
    East Branch Croton River is a major tributary of New York's Croton River system, contributing to the water supply network for New York City.
  • C. Muddy River
    The Muddy River is a small urban waterway in Boston and Brookline, Massachusetts, that forms a key component of Frederick Law Olmsted’s Emerald Necklace park system.
  • D. Wapsinonoc Creek
    Wapsinonoc Creek is a small stream in eastern Iowa that flows through and helps drain the area around the town of West Branch.
  • E. Pocantico River
    The Pocantico River is a small river in Westchester County, New York, that flows through the Rockefeller family’s historic estate and into the Hudson River near Sleepy Hollow.
  • 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_69a44cb1bfe48190b8b7523b95d4a099 completed March 1, 2026, 2:26 p.m.
NEDg Description generation batch_69a44d42f6548190ba83a589c46be961 completed March 1, 2026, 2:29 p.m.
NED2 Entity disambiguation (via description) batch_69a44d93a1d881908c1ac2685b7ffc6c completed March 1, 2026, 2:30 p.m.
Created at: Feb. 28, 2026, 2:07 a.m.