Triple
T425042
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mesozoic Era |
E8188
|
entity |
| Predicate | endedByEvent |
P4327
|
FINISHED |
| Object | Cretaceous–Paleogene mass extinction |
E6899
|
NE FINISHED |
How this triple was built (3 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: Cretaceous–Paleogene mass extinction | Statement: [Mesozoic Era, endedByEvent, Cretaceous–Paleogene mass extinction]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cretaceous–Paleogene mass extinction Context triple: [Mesozoic Era, endedByEvent, Cretaceous–Paleogene mass extinction]
-
A.
Permian–Triassic mass extinction
The Permian–Triassic mass extinction was the most severe biodiversity crisis in Earth's history, wiping out the majority of marine and terrestrial species around 252 million years ago and marking the boundary between the Paleozoic and Mesozoic eras.
-
B.
Cretaceous–Paleogene boundary
chosen
The Cretaceous–Paleogene boundary marks the geological transition 66 million years ago associated with a mass extinction event that wiped out non-avian dinosaurs and many other species, likely triggered by a large asteroid impact.
-
C.
Chicxulub impact crater
The Chicxulub impact crater is a massive buried structure in Mexico’s Yucatán Peninsula formed by an asteroid impact widely linked to the mass extinction event that wiped out the non-avian dinosaurs.
-
D.
The Sixth Extinction
The Sixth Extinction is a nonfiction book by Elizabeth Kolbert that examines humanity’s role in causing an ongoing mass extinction of species and its implications for the planet’s future.
-
E.
Cretaceous
The Cretaceous was the final period of the Mesozoic Era, marked by high sea levels, diverse dinosaurs, and ending with the mass extinction that wiped them out about 66 million years ago.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: endedByEvent Context triple: [Mesozoic Era, endedByEvent, Cretaceous–Paleogene mass extinction]
-
A.
basedOnEvent
Indicates that something is derived from, influenced by, or determined in reference to a specific event.
-
B.
shapedByEvent
Indicates that something’s form, state, or characteristics are influenced or determined by a particular event.
-
C.
concludedAtEvent
chosen
Indicates that an entity’s participation, state, or validity ended as a result of a specific event.
-
D.
oversawEvent
Indicates that an entity had supervisory or managerial responsibility for the planning, execution, or overall conduct of an event.
-
E.
concludedBy
Indicates that an event, process, or state is brought to an end or finalized by a specific agent or entity.
- F. None of above.
Provenance (4 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_69a2e7f1d1bc81909cf2dc9754a3c334 |
completed | Feb. 28, 2026, 1:04 p.m. |
| NER | Named-entity recognition | batch_69a2eed56ab481909eec289075496260 |
completed | Feb. 28, 2026, 1:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a42f64cccc8190afae9aa50097670a |
completed | March 1, 2026, 12:21 p.m. |
| PD | Predicate disambiguation | batch_69a2edd6736c81909a6ca549f77b4345 |
completed | Feb. 28, 2026, 1:29 p.m. |
Created at: Feb. 28, 2026, 1:11 p.m.