Triple
T11023928
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | San Ysidro, California |
E260565
|
entity |
| Predicate | hasHistoricalEvent |
P2107
|
FINISHED |
| Object |
San Ysidro McDonald’s massacre
The San Ysidro McDonald’s massacre was a 1984 mass shooting at a McDonald’s restaurant in San Ysidro, California, in which a gunman killed 21 people and wounded many others, making it one of the deadliest mass shootings in U.S. history at the time.
|
E900440
|
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: San Ysidro McDonald’s massacre | Statement: [San Ysidro, California, hasHistoricalEvent, San Ysidro McDonald’s massacre]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Ysidro McDonald’s massacre Context triple: [San Ysidro, California, hasHistoricalEvent, San Ysidro McDonald’s massacre]
-
A.
Santa Cruz massacre
The Santa Cruz massacre was a 1991 incident in Dili, East Timor, in which Indonesian security forces opened fire on peaceful pro-independence demonstrators, killing and wounding hundreds and drawing global attention to East Timor’s struggle.
-
B.
Corpus Christi massacre
The Corpus Christi massacre was a 1971 government-led attack on student demonstrators in Mexico City, in which paramilitary forces violently repressed protesters, resulting in numerous deaths and injuries.
-
C.
Columbine High School massacre
The Columbine High School massacre was a 1999 school shooting in Littleton, Colorado, in which two students murdered 13 people and wounded many others before killing themselves, becoming a defining event in debates over gun violence and school safety in the United States.
-
D.
Black Friday massacre
The Black Friday massacre refers to the deadly crackdown by Iranian security forces on protestors in Tehran on 8 September 1978, a pivotal and brutal event during the Iranian Revolution.
-
E.
massacre at Cholula
The massacre at Cholula was a brutal 1519 slaughter of thousands of Indigenous inhabitants by Hernán Cortés and his forces during the Spanish conquest of the Aztec Empire.
- 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: San Ysidro McDonald’s massacre Triple: [San Ysidro, California, hasHistoricalEvent, San Ysidro McDonald’s massacre]
Generated description
The San Ysidro McDonald’s massacre was a 1984 mass shooting at a McDonald’s restaurant in San Ysidro, California, in which a gunman killed 21 people and wounded many others, making it one of the deadliest mass shootings in U.S. history at the time.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Ysidro McDonald’s massacre Target entity description: The San Ysidro McDonald’s massacre was a 1984 mass shooting at a McDonald’s restaurant in San Ysidro, California, in which a gunman killed 21 people and wounded many others, making it one of the deadliest mass shootings in U.S. history at the time.
-
A.
Santa Cruz massacre
The Santa Cruz massacre was a 1991 incident in Dili, East Timor, in which Indonesian security forces opened fire on peaceful pro-independence demonstrators, killing and wounding hundreds and drawing global attention to East Timor’s struggle.
-
B.
Corpus Christi massacre
The Corpus Christi massacre was a 1971 government-led attack on student demonstrators in Mexico City, in which paramilitary forces violently repressed protesters, resulting in numerous deaths and injuries.
-
C.
Columbine High School massacre
The Columbine High School massacre was a 1999 school shooting in Littleton, Colorado, in which two students murdered 13 people and wounded many others before killing themselves, becoming a defining event in debates over gun violence and school safety in the United States.
-
D.
Black Friday massacre
The Black Friday massacre refers to the deadly crackdown by Iranian security forces on protestors in Tehran on 8 September 1978, a pivotal and brutal event during the Iranian Revolution.
-
E.
massacre at Cholula
The massacre at Cholula was a brutal 1519 slaughter of thousands of Indigenous inhabitants by Hernán Cortés and his forces during the Spanish conquest of the Aztec Empire.
- 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_69d6aa9687448190b28d353b1b6a610e |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d797be9f148190a3a967bad5947496 |
completed | April 9, 2026, 12:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e3750917d481909e73de0bfae27827 |
completed | April 18, 2026, 12:11 p.m. |
| NEDg | Description generation | batch_69e37ab860f48190808ba0076cfa9c98 |
completed | April 18, 2026, 12:36 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69e3864dd0d48190b3fd81381f5d7418 |
completed | April 18, 2026, 1:25 p.m. |
Created at: April 8, 2026, 9:25 p.m.