Triple

T7581750
Position Surface form Disambiguated ID Type / Status
Subject Gauss–Matuyama geomagnetic reversal E179503 entity
Predicate relatedTo P37 FINISHED
Object Matuyama–Brunhes geomagnetic reversal E179503 NE FINISHED

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: Matuyama–Brunhes geomagnetic reversal | Statement: [Gauss–Matuyama geomagnetic reversal, relatedTo, Matuyama–Brunhes geomagnetic reversal]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Matuyama–Brunhes geomagnetic reversal
Context triple: [Gauss–Matuyama geomagnetic reversal, relatedTo, Matuyama–Brunhes geomagnetic reversal]
  • A. Gauss–Matuyama geomagnetic reversal chosen
    The Gauss–Matuyama geomagnetic reversal was a major event in Earth's history when the planet's magnetic field flipped polarity around 2.6 million years ago, marking a key boundary used in geological time scales.
  • B. International Geomagnetic Reference Field
    The International Geomagnetic Reference Field is a standardized mathematical model describing Earth’s main magnetic field and its secular variation, used globally for navigation, geophysical research, and defining geomagnetic coordinates.
  • C. An Inquiry into the Original State and Formation of the Earth
    *An Inquiry into the Original State and Formation of the Earth* is an 18th-century geological treatise by John Whitehurst that explores the Earth's structure, history, and the processes that shaped it.
  • D. Eliassen–Palm flux
    Eliassen–Palm flux is a fundamental concept in atmospheric dynamics that quantifies the transport of wave activity and momentum by large-scale atmospheric waves, crucial for understanding the general circulation of the atmosphere.
  • E. The Age of the Earth
    The Age of the Earth is a landmark 20th-century geology book that helped establish modern estimates of Earth’s age using radiometric dating methods.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69c69f327db881909a21ae3b156f8ded completed March 27, 2026, 3:16 p.m.
NER Named-entity recognition batch_69c6f978341081909e009c410ffc5039 completed March 27, 2026, 9:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8617b8934819094f596e6a037e468 completed March 28, 2026, 11:17 p.m.
Created at: March 27, 2026, 3:52 p.m.