Triple

T5611214
Position Surface form Disambiguated ID Type / Status
Subject Ronald Reagan UCLA Medical Center E147359 entity
Predicate builtAfter P6702 FINISHED
Object 1994 Northridge earthquake
The 1994 Northridge earthquake was a powerful and destructive magnitude 6.7 earthquake that struck the Los Angeles area of Southern California on January 17, 1994, causing widespread damage and loss of life.
E538747 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: 1994 Northridge earthquake | Statement: [Ronald Reagan UCLA Medical Center, builtAfter, 1994 Northridge earthquake]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1994 Northridge earthquake
Context triple: [Ronald Reagan UCLA Medical Center, builtAfter, 1994 Northridge earthquake]
  • A. 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.
  • B. 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.
  • C. 1906 San Francisco earthquake
    The 1906 San Francisco earthquake was a devastating magnitude 7.8 seismic event that struck Northern California, causing widespread destruction and fires that nearly leveled San Francisco and became one of the worst natural disasters in U.S. history.
  • D. 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.
  • E. 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.
  • 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: 1994 Northridge earthquake
Triple: [Ronald Reagan UCLA Medical Center, builtAfter, 1994 Northridge earthquake]
Generated description
The 1994 Northridge earthquake was a powerful and destructive magnitude 6.7 earthquake that struck the Los Angeles area of Southern California on January 17, 1994, causing widespread damage and loss of life.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 1994 Northridge earthquake
Target entity description: The 1994 Northridge earthquake was a powerful and destructive magnitude 6.7 earthquake that struck the Los Angeles area of Southern California on January 17, 1994, causing widespread damage and loss of life.
  • A. 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.
  • B. 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.
  • C. 1906 San Francisco earthquake
    The 1906 San Francisco earthquake was a devastating magnitude 7.8 seismic event that struck Northern California, causing widespread destruction and fires that nearly leveled San Francisco and became one of the worst natural disasters in U.S. history.
  • D. 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.
  • E. 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.
  • 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_69c0090500f881908374285baf0ac46f completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c0211fad448190b068b77ed25931d5 completed March 22, 2026, 5:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69c04d4d7f4c8190a58124f983589cd2 completed March 22, 2026, 8:13 p.m.
NEDg Description generation batch_69c056a981f881908663c315fe2db829 completed March 22, 2026, 8:52 p.m.
NED2 Entity disambiguation (via description) batch_69c0573ca734819098de3376ff93c309 completed March 22, 2026, 8:55 p.m.
Created at: March 22, 2026, 3:39 p.m.