Triple

T11460520
Position Surface form Disambiguated ID Type / Status
Subject San Gabriel River E271645 entity
Predicate tributary P415 FINISHED
Object Walnut Creek (San Gabriel River)
Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
 E929595 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: Walnut Creek (San Gabriel River) | Statement: [San Gabriel River, tributary, Walnut Creek (San Gabriel River)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Walnut Creek (San Gabriel River)
Context triple: [San Gabriel River, tributary, Walnut Creek (San Gabriel River)]
  • A. Fish Creek (San Gabriel River)
    Fish Creek is a smaller watercourse in Southern California that feeds into the San Gabriel River as one of its tributary streams.
  • B. Lee Vining Creek
    Lee Vining Creek is a Sierra Nevada stream in California that flows east into Mono Lake, providing a key source of freshwater to the Mono Basin ecosystem.
  • C. San Andreas Creek
    San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
  • D. San Mateo Creek
    San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
  • E. Alamitos Creek
    Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
  • 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: Walnut Creek (San Gabriel River)
Triple: [San Gabriel River, tributary, Walnut Creek (San Gabriel River)]
Generated description
Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Walnut Creek (San Gabriel River)
Target entity description: Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
  • A. Fish Creek (San Gabriel River)
    Fish Creek is a smaller watercourse in Southern California that feeds into the San Gabriel River as one of its tributary streams.
  • B. Lee Vining Creek
    Lee Vining Creek is a Sierra Nevada stream in California that flows east into Mono Lake, providing a key source of freshwater to the Mono Basin ecosystem.
  • C. San Andreas Creek
    San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
  • D. San Mateo Creek
    San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
  • E. Alamitos Creek
    Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
  • 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_69d6aadff8888190a13f253f0d460874 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d822f384f08190b1150ed1389dd31a completed April 9, 2026, 10:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69e6248d0db881909999049356f53ff6 completed April 20, 2026, 1:05 p.m.
NEDg Description generation batch_69e62cf224f881908badcdab6aea1aef completed April 20, 2026, 1:41 p.m.
NED2 Entity disambiguation (via description) batch_69e663ffedfc8190a2b51995c62d1e6b completed April 20, 2026, 5:36 p.m.
Created at: April 8, 2026, 9:35 p.m.