Triple

T9970847
Position Surface form Disambiguated ID Type / Status
Subject Pacific–North American plate boundary system E196197 entity
Predicate notableEarthquake P7350 FINISHED
Object 1857 Fort Tejon earthquake
The 1857 Fort Tejon earthquake was a massive magnitude ~7.9 rupture along California’s San Andreas Fault that produced some of the largest known ground displacements in U.S. history.
E831842 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: 1857 Fort Tejon earthquake | Statement: [Pacific–North American plate boundary system, notableEarthquake, 1857 Fort Tejon earthquake]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1857 Fort Tejon earthquake
Context triple: [Pacific–North American plate boundary system, notableEarthquake, 1857 Fort Tejon earthquake]
  • A. 1968 Borrego Mountain earthquake
    The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
  • B. 1868 Hayward earthquake
    The 1868 Hayward earthquake was a powerful and destructive seismic event that struck the San Francisco Bay Area in California, causing extensive damage and loss of life and serving as a key historical benchmark for seismic risk on the Hayward Fault.
  • C. 1983 Coalinga earthquake
    The 1983 Coalinga earthquake was a powerful magnitude 6.5 seismic event in central California that caused significant damage to the town of Coalinga and surrounding areas.
  • D. Loma Prieta
    Loma Prieta is a prominent peak in California’s Santa Cruz Mountains, best known for lending its name to the devastating 1989 Loma Prieta earthquake.
  • E. 1989 Loma Prieta earthquake
    The 1989 Loma Prieta earthquake was a powerful magnitude 6.9 quake in Northern California that caused widespread damage in the San Francisco Bay Area, including freeway collapses and the disruption of the World Series.
  • 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: 1857 Fort Tejon earthquake
Triple: [Pacific–North American plate boundary system, notableEarthquake, 1857 Fort Tejon earthquake]
Generated description
The 1857 Fort Tejon earthquake was a massive magnitude ~7.9 rupture along California’s San Andreas Fault that produced some of the largest known ground displacements in U.S. history.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 1857 Fort Tejon earthquake
Target entity description: The 1857 Fort Tejon earthquake was a massive magnitude ~7.9 rupture along California’s San Andreas Fault that produced some of the largest known ground displacements in U.S. history.
  • A. 1968 Borrego Mountain earthquake
    The 1968 Borrego Mountain earthquake was a powerful magnitude 6.5–6.8 temblor in Southern California that caused significant surface rupture and damage, and became an important case study in modern seismology and fault mechanics.
  • B. 1868 Hayward earthquake
    The 1868 Hayward earthquake was a powerful and destructive seismic event that struck the San Francisco Bay Area in California, causing extensive damage and loss of life and serving as a key historical benchmark for seismic risk on the Hayward Fault.
  • C. 1983 Coalinga earthquake
    The 1983 Coalinga earthquake was a powerful magnitude 6.5 seismic event in central California that caused significant damage to the town of Coalinga and surrounding areas.
  • D. Loma Prieta
    Loma Prieta is a prominent peak in California’s Santa Cruz Mountains, best known for lending its name to the devastating 1989 Loma Prieta earthquake.
  • E. 1989 Loma Prieta earthquake
    The 1989 Loma Prieta earthquake was a powerful magnitude 6.9 quake in Northern California that caused widespread damage in the San Francisco Bay Area, including freeway collapses and the disruption of the World Series.
  • 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_69ca82eea2b88190a0e511d21a31f386 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cdb7b96b1c8190b9d3c1171346615a completed April 2, 2026, 12:26 a.m.
NED1 Entity disambiguation (via context triple) batch_69d23dca14d081909573e91a576921c9 completed April 5, 2026, 10:47 a.m.
NEDg Description generation batch_69d23f63a0d08190a3ace2e4bb58a9ac completed April 5, 2026, 10:54 a.m.
NED2 Entity disambiguation (via description) batch_69d23ff6fdc4819082d8d575a3901ea8 completed April 5, 2026, 10:56 a.m.
Created at: March 30, 2026, 8:48 p.m.