Triple
T17479084
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 1868 Hayward earthquake |
E425610
|
entity |
| Predicate | fault |
P1940
|
FINISHED |
| Object | Hayward Fault |
—
|
NE NERFINISHED |
How this triple was built (2 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: Hayward Fault | Statement: [1868 Hayward earthquake, fault, Hayward Fault]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hayward Fault Context triple: [1868 Hayward earthquake, fault, Hayward Fault]
-
A.
Hayward Fault
chosen
The Hayward Fault is a major geologic fault in the San Francisco Bay Area known for its high seismic risk and potential to generate powerful earthquakes.
-
B.
San Gregorio Fault
The San Gregorio Fault is a major right-lateral strike-slip fault system running offshore and along parts of the central California coast, contributing significantly to the region’s seismic hazard.
-
C.
Calaveras Fault
The Calaveras Fault is a major right-lateral strike-slip fault in central California that forms part of the San Andreas Fault system and is known for producing frequent small to moderate earthquakes.
-
D.
San Andreas Fault
The San Andreas Fault is a major tectonic boundary in California where the Pacific and North American plates meet, notorious for generating powerful earthquakes.
-
E.
Limagne fault
The Limagne fault is a major geological fault system in central France that forms part of the Limagne graben and helps define the tectonic setting of the Chaîne des Puys volcanic region.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d889dbc2e88190b18ea6115e819258 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e451be5fd08190aeaa12b3a6d6c6d4 |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 10, 2026, 5:48 a.m.