Triple

T422220
Position Surface form Disambiguated ID Type / Status
Subject Pasadena E8127 entity
Predicate traversedBy P225 FINISHED
Object Arroyo Seco
Arroyo Seco is a seasonal river and canyon in Los Angeles County, California, known for its historic role in regional water management, recreation, and as the route followed by the Arroyo Seco Parkway.
E75440 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: Arroyo Seco | Statement: [Pasadena, traversedBy, Arroyo Seco]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Arroyo Seco
Context triple: [Pasadena, traversedBy, Arroyo Seco]
  • A. Los Angeles River
    The Los Angeles River is a largely channelized urban waterway running through Los Angeles County that has played a central role in the region’s history, development, and ongoing revitalization efforts.
  • B. Santa Cruz River
    The Santa Cruz River is a significant river in southern Argentina that flows eastward from the Andes through the Patagonian steppe to the Atlantic Ocean.
  • C. Merced River
    The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
  • D. Chavez Ravine
    Chavez Ravine is a hilly area in Los Angeles best known as the site of Dodger Stadium, home of the Los Angeles Dodgers.
  • E. Mojave River
    The Mojave River is an intermittent river in the Mojave Desert of California that mostly flows underground and provides a crucial water source for the region’s arid ecosystems and communities.
  • 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: Arroyo Seco
Triple: [Pasadena, traversedBy, Arroyo Seco]
Generated description
Arroyo Seco is a seasonal river and canyon in Los Angeles County, California, known for its historic role in regional water management, recreation, and as the route followed by the Arroyo Seco Parkway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Arroyo Seco
Target entity description: Arroyo Seco is a seasonal river and canyon in Los Angeles County, California, known for its historic role in regional water management, recreation, and as the route followed by the Arroyo Seco Parkway.
  • A. Los Angeles River
    The Los Angeles River is a largely channelized urban waterway running through Los Angeles County that has played a central role in the region’s history, development, and ongoing revitalization efforts.
  • B. Santa Cruz River
    The Santa Cruz River is a significant river in southern Argentina that flows eastward from the Andes through the Patagonian steppe to the Atlantic Ocean.
  • C. Merced River
    The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
  • D. Chavez Ravine
    Chavez Ravine is a hilly area in Los Angeles best known as the site of Dodger Stadium, home of the Los Angeles Dodgers.
  • E. Mojave River
    The Mojave River is an intermittent river in the Mojave Desert of California that mostly flows underground and provides a crucial water source for the region’s arid ecosystems and communities.
  • 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_69a2e7f1d1bc81909cf2dc9754a3c334 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2eec0e9dc81908c08b209ce5278ef completed Feb. 28, 2026, 1:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69a52383450081908b945646a3e231c2 completed March 2, 2026, 5:43 a.m.
NEDg Description generation batch_69a523da79848190b55c227e168a71dc completed March 2, 2026, 5:44 a.m.
NED2 Entity disambiguation (via description) batch_69a524391b688190b8c18274db7e3450 completed March 2, 2026, 5:46 a.m.
Created at: Feb. 28, 2026, 1:11 p.m.