Triple

T2420202
Position Surface form Disambiguated ID Type / Status
Subject Los Angeles Basin E53399 entity
Predicate drainedBy P165 FINISHED
Object Dominguez Channel
Dominguez Channel is an urban flood-control waterway in southern Los Angeles County that carries runoff from the Los Angeles Basin to the Pacific Ocean near the Port of Los Angeles.
E266623 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: Dominguez Channel | Statement: [Los Angeles Basin, drainedBy, Dominguez Channel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Dominguez Channel
Context triple: [Los Angeles Basin, drainedBy, Dominguez Channel]
  • A. Santa Barbara Channel
    The Santa Barbara Channel is a narrow stretch of the Pacific Ocean off the coast of Southern California, known for its rich marine biodiversity, offshore oil platforms, and separation of the mainland from the northern Channel Islands.
  • B. Garrison Channel
    Garrison Channel is a waterway in downtown Tampa, Florida, that separates the city’s central business district from Harbour Island and serves as a key part of the Tampa waterfront.
  • C. Cal-Sag Channel
    The Cal-Sag Channel is a man-made waterway in the Chicago metropolitan area that diverts and carries water and barge traffic between the Calumet River system and the Chicago Sanitary and Ship Canal.
  • D. San Juanico Strait
    San Juanico Strait is a narrow, picturesque waterway in the central Philippines known for separating the islands of Samar and Leyte and for the iconic San Juanico Bridge that spans it.
  • E. San Bernardino Strait
    San Bernardino Strait is a vital waterway in the central Philippines that separates the islands of Luzon and Samar and links the Philippine Sea with the inland seas of the archipelago.
  • 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: Dominguez Channel
Triple: [Los Angeles Basin, drainedBy, Dominguez Channel]
Generated description
Dominguez Channel is an urban flood-control waterway in southern Los Angeles County that carries runoff from the Los Angeles Basin to the Pacific Ocean near the Port of Los Angeles.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Dominguez Channel
Target entity description: Dominguez Channel is an urban flood-control waterway in southern Los Angeles County that carries runoff from the Los Angeles Basin to the Pacific Ocean near the Port of Los Angeles.
  • A. Santa Barbara Channel
    The Santa Barbara Channel is a narrow stretch of the Pacific Ocean off the coast of Southern California, known for its rich marine biodiversity, offshore oil platforms, and separation of the mainland from the northern Channel Islands.
  • B. Garrison Channel
    Garrison Channel is a waterway in downtown Tampa, Florida, that separates the city’s central business district from Harbour Island and serves as a key part of the Tampa waterfront.
  • C. Cal-Sag Channel
    The Cal-Sag Channel is a man-made waterway in the Chicago metropolitan area that diverts and carries water and barge traffic between the Calumet River system and the Chicago Sanitary and Ship Canal.
  • D. San Juanico Strait
    San Juanico Strait is a narrow, picturesque waterway in the central Philippines known for separating the islands of Samar and Leyte and for the iconic San Juanico Bridge that spans it.
  • E. San Bernardino Strait
    San Bernardino Strait is a vital waterway in the central Philippines that separates the islands of Luzon and Samar and links the Philippine Sea with the inland seas of the archipelago.
  • 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_69ab495c44d48190b7235b23719bc3f6 completed March 6, 2026, 9:38 p.m.
NER Named-entity recognition batch_69abc96f97e08190978b2d873ab88859 completed March 7, 2026, 6:45 a.m.
NED1 Entity disambiguation (via context triple) batch_69aebf57b0708190bf4d38c51e02309f completed March 9, 2026, 12:38 p.m.
NEDg Description generation batch_69aec495e4e88190a1b9929161aba193 completed March 9, 2026, 1:01 p.m.
NED2 Entity disambiguation (via description) batch_69aec570ec88819089a2afc42aec1088 completed March 9, 2026, 1:04 p.m.
Created at: March 6, 2026, 9:42 p.m.