Triple

T16370885
Position Surface form Disambiguated ID Type / Status
Subject Late Ordovician mass extinction E397558 entity
Predicate precededBy P97 FINISHED
Object Great Ordovician Biodiversification Event E87794 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Great Ordovician Biodiversification Event | Statement: [Late Ordovician mass extinction, precededBy, Great Ordovician Biodiversification Event]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Great Ordovician Biodiversification Event
Context triple: [Late Ordovician mass extinction, precededBy, Great Ordovician Biodiversification Event]
  • A. Great Ordovician Biodiversification Event chosen
    The Great Ordovician Biodiversification Event was a profound evolutionary radiation during the Ordovician Period that saw a dramatic increase in marine biodiversity and the establishment of many major animal groups in Paleozoic oceans.
  • B. Late Ordovician mass extinction
    The Late Ordovician mass extinction was one of Earth’s largest biodiversity crises, during which severe climate change and glaciation led to the rapid loss of a substantial portion of marine species.
  • C. Neoproterozoic Oxygenation Event
    The Neoproterozoic Oxygenation Event was a major rise in Earth’s atmospheric and oceanic oxygen levels during the Neoproterozoic Era, linked to profound climatic shifts and the emergence of complex multicellular life.
  • D. Phanerozoic mass extinctions
    Phanerozoic mass extinctions are the handful of catastrophic, globally disruptive biodiversity crises over the last ~540 million years that abruptly wiped out large proportions of Earth’s species and reshaped the course of evolution.
  • E. Cambrian explosion
    The Cambrian explosion was a relatively brief period around 541 million years ago when most major animal groups rapidly appeared in the fossil record, dramatically increasing the complexity and diversity of life on Earth.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d87f2778dc8190aa95c7572db127e6 elicitation completed
NER batch_69e2ff420d04819096ff12e08edf2f8b ner completed
NED1 batch_6a002dc44c508190bf87b437d1447db6 ned_source_triple completed
Created at: April 10, 2026, 5:08 a.m.