Triple
T21821934
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 1994 Northridge earthquake |
E538747
|
entity |
| Predicate | epicenter |
P1939
|
FINISHED |
| Object | Northridge, Los Angeles, California |
—
|
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: Northridge, Los Angeles, California | Statement: [1994 Northridge earthquake, epicenter, Northridge, Los Angeles, California]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northridge, Los Angeles, California Context triple: [1994 Northridge earthquake, epicenter, Northridge, Los Angeles, California]
-
A.
Northridge
chosen
Northridge is a suburban neighborhood in the San Fernando Valley region of Los Angeles, California, known for housing California State University, Northridge (CSUN).
-
B.
Westwood, Los Angeles
Westwood, Los Angeles is a Westside neighborhood best known as the home of UCLA and a busy commercial district with shops, restaurants, and cultural venues.
-
C.
Wrightwood, California
Wrightwood, California is a small mountain resort community in the San Gabriel Mountains known for outdoor recreation, including skiing at nearby Mountain High and hiking in the Angeles National Forest.
-
D.
San Andreas, California
San Andreas, California is a small historic Gold Rush-era town in the Sierra Nevada foothills that serves as the administrative and commercial center of Calaveras County.
-
E.
Van Nuys, California
Van Nuys, California is a neighborhood in Los Angeles known historically for its automotive manufacturing plants and its role as a major industrial and residential hub in the San Fernando Valley.
- 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_69e0c475038c8190abb9b1a20eb8ff50 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69f0912e432481909045d00a61daa767 |
completed | April 28, 2026, 10:51 a.m. |
Created at: April 16, 2026, 6:54 p.m.