Triple
T23468668
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hetch Hetchy water rights controversy |
E569165
|
entity |
| Predicate | hasCause |
P708
|
FINISHED |
| Object | 1906 San Francisco earthquake and fire |
—
|
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: 1906 San Francisco earthquake and fire | Statement: [Hetch Hetchy water rights controversy, hasCause, 1906 San Francisco earthquake and fire]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 1906 San Francisco earthquake and fire Context triple: [Hetch Hetchy water rights controversy, hasCause, 1906 San Francisco earthquake and fire]
-
A.
1906 San Francisco earthquake
chosen
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.
-
B.
1865 San Francisco earthquake
The 1865 San Francisco earthquake was a significant 19th-century seismic event that struck the San Francisco Bay Area, causing notable damage and foreshadowing larger regional earthquakes to come.
-
C.
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.
-
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.
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.
- 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_69e2458ebd808190b3298163132cfb0b |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f1a6fd280c81908aae05f0851466eb |
completed | April 29, 2026, 6:36 a.m. |
Created at: April 17, 2026, 5:54 p.m.