Triple

T71560
Position Surface form Disambiguated ID Type / Status
Subject California–Nevada border E1431 entity
Predicate hasCoordinateReference P2054 FINISHED
Object San Bernardino meridian
The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
E9583 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: San Bernardino meridian | Statement: [California–Nevada border, hasCoordinateReference, San Bernardino meridian]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: San Bernardino meridian
Context triple: [California–Nevada border, hasCoordinateReference, San Bernardino meridian]
  • A. Mount Diablo meridian
    The Mount Diablo meridian is a principal survey meridian in California used as a reference line for land surveying and mapping across much of the state and parts of Nevada.
  • B. Tropic of Cancer
    The Tropic of Cancer is the northernmost latitude on Earth where the sun can appear directly overhead, marking the boundary of the tropical zone in the Northern Hemisphere.
  • C. Tropic of Capricorn
    The Tropic of Capricorn is the southernmost latitude where the sun can appear directly overhead, marking an important boundary of the Earth's tropical zone.
  • D. Equator
    The Equator is an imaginary line encircling the Earth at equal distance from the poles, dividing the planet into Northern and Southern Hemispheres and marking 0° latitude.
  • E. Paso de San Francisco
    Paso de San Francisco is a high-altitude Andean mountain pass on the Argentina–Chile border, known as a key access route to the Ojos del Salado volcano and surrounding desert landscapes.
  • 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: San Bernardino meridian
Triple: [California–Nevada border, hasCoordinateReference, San Bernardino meridian]
Generated description
The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: San Bernardino meridian
Target entity description: The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
  • A. Mount Diablo meridian
    The Mount Diablo meridian is a principal survey meridian in California used as a reference line for land surveying and mapping across much of the state and parts of Nevada.
  • B. Tropic of Cancer
    The Tropic of Cancer is the northernmost latitude on Earth where the sun can appear directly overhead, marking the boundary of the tropical zone in the Northern Hemisphere.
  • C. Tropic of Capricorn
    The Tropic of Capricorn is the southernmost latitude where the sun can appear directly overhead, marking an important boundary of the Earth's tropical zone.
  • D. Equator
    The Equator is an imaginary line encircling the Earth at equal distance from the poles, dividing the planet into Northern and Southern Hemispheres and marking 0° latitude.
  • E. Paso de San Francisco
    Paso de San Francisco is a high-altitude Andean mountain pass on the Argentina–Chile border, known as a key access route to the Ojos del Salado volcano and surrounding desert landscapes.
  • 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_69a24c06b3bc8190aa4ac89026115efc completed Feb. 28, 2026, 1:59 a.m.
NER Named-entity recognition batch_69a2567b592c8190aaf692a18fcd2f1b completed Feb. 28, 2026, 2:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69a26c1b81a88190ba473b28dd88fdb8 completed Feb. 28, 2026, 4:16 a.m.
NEDg Description generation batch_69a26d3eee308190a591a8b71fc3aea9 completed Feb. 28, 2026, 4:21 a.m.
NED2 Entity disambiguation (via description) batch_69a26d9fb7248190b358c6f890eac0e9 completed Feb. 28, 2026, 4:22 a.m.
Created at: Feb. 28, 2026, 2:03 a.m.