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.