Triple
T3735222
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | San Bruno, California, United States |
E79164
|
entity |
| Predicate | experiencedEvent |
P149
|
FINISHED |
| Object |
2010 San Bruno pipeline explosion
The 2010 San Bruno pipeline explosion was a catastrophic natural gas line rupture and fire in a residential neighborhood that killed eight people, destroyed dozens of homes, and prompted major scrutiny of pipeline safety regulations in the United States.
|
E383301
|
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: 2010 San Bruno pipeline explosion | Statement: [San Bruno, California, United States, experiencedEvent, 2010 San Bruno pipeline explosion]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 2010 San Bruno pipeline explosion Context triple: [San Bruno, California, United States, experiencedEvent, 2010 San Bruno pipeline explosion]
-
A.
Aliso Canyon Oil Field
Aliso Canyon Oil Field is a major underground natural gas storage facility in Southern California, known for one of the largest methane leaks in U.S. history.
-
B.
1991 Oakland-Berkeley firestorm
The 1991 Oakland-Berkeley firestorm was a devastating urban wildfire in the San Francisco Bay Area that killed 25 people, destroyed thousands of homes, and became one of the costliest and most destructive fires in California history.
-
C.
1969 Santa Barbara oil spill
The 1969 Santa Barbara oil spill was a massive offshore drilling accident off the California coast that released millions of gallons of crude oil, devastating marine and coastal ecosystems and helping catalyze the modern U.S. environmental movement.
-
D.
2013 Boston Marathon bombing
The 2013 Boston Marathon bombing was a terrorist attack in which two homemade bombs exploded near the marathon’s finish line, killing three people and injuring hundreds.
-
E.
Deepwater Horizon oil spill
The Deepwater Horizon oil spill was a massive 2010 offshore drilling disaster that released millions of barrels of oil into the Gulf of Mexico, causing one of the worst environmental catastrophes in U.S. history.
- 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: 2010 San Bruno pipeline explosion Triple: [San Bruno, California, United States, experiencedEvent, 2010 San Bruno pipeline explosion]
Generated description
The 2010 San Bruno pipeline explosion was a catastrophic natural gas line rupture and fire in a residential neighborhood that killed eight people, destroyed dozens of homes, and prompted major scrutiny of pipeline safety regulations in the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 2010 San Bruno pipeline explosion Target entity description: The 2010 San Bruno pipeline explosion was a catastrophic natural gas line rupture and fire in a residential neighborhood that killed eight people, destroyed dozens of homes, and prompted major scrutiny of pipeline safety regulations in the United States.
-
A.
Aliso Canyon Oil Field
Aliso Canyon Oil Field is a major underground natural gas storage facility in Southern California, known for one of the largest methane leaks in U.S. history.
-
B.
1991 Oakland-Berkeley firestorm
The 1991 Oakland-Berkeley firestorm was a devastating urban wildfire in the San Francisco Bay Area that killed 25 people, destroyed thousands of homes, and became one of the costliest and most destructive fires in California history.
-
C.
1969 Santa Barbara oil spill
The 1969 Santa Barbara oil spill was a massive offshore drilling accident off the California coast that released millions of gallons of crude oil, devastating marine and coastal ecosystems and helping catalyze the modern U.S. environmental movement.
-
D.
2013 Boston Marathon bombing
The 2013 Boston Marathon bombing was a terrorist attack in which two homemade bombs exploded near the marathon’s finish line, killing three people and injuring hundreds.
-
E.
Deepwater Horizon oil spill
The Deepwater Horizon oil spill was a massive 2010 offshore drilling disaster that released millions of barrels of oil into the Gulf of Mexico, causing one of the worst environmental catastrophes in U.S. history.
- 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_69ad8b0e4650819090ad7cef094285e8 |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69adcb39dc0881909cd74ff25d8c43a9 |
completed | March 8, 2026, 7:17 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b4db1be1388190a887d9eca0f4f9b3 |
completed | March 14, 2026, 3:50 a.m. |
| NEDg | Description generation | batch_69b4db81fd648190a9dd6f0ade21f14d |
completed | March 14, 2026, 3:52 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b4dc1f3cc48190b1b53bc88a0c3577 |
completed | March 14, 2026, 3:55 a.m. |
Created at: March 8, 2026, 3:34 p.m.