Triple

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).

Phrase: Maastrichtian | Statement: [Maastricht Formation, stratotypeOf, Maastrichtian]

Target entity: Maastrichtian
Context triple: [Maastricht Formation, stratotypeOf, Maastrichtian]

• A. Maastrichtian chosen
  The Maastrichtian is the final stage of the Late Cretaceous period, marking the last interval of non-avian dinosaur dominance before the mass extinction event 66 million years ago.
• B. Barremian
  The Barremian is an Early Cretaceous age/stage of the geologic timescale, notable for diverse dinosaur faunas and significant evolutionary developments.
• C. Tithonian
  The Tithonian is the final age of the Late Jurassic period, marked by diverse marine life and significant evolutionary developments among dinosaurs and other vertebrates.
• D. Aquitanian Stage
  The Aquitanian Stage is the earliest age of the Miocene Epoch, marking a distinct interval in Earth’s geologic time characterized by significant climatic and faunal transitions.
• E. Cisuralian Epoch
  The Cisuralian Epoch is the earliest subdivision of the Permian, marking a time of significant diversification of terrestrial life and continued development of early amniotes following the late Paleozoic ice age.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: stratotypeOf
Context triple: [Maastricht Formation, stratotypeOf, Maastrichtian]

• A. hasStratotype chosen
  Indicates that one entity serves as the designated standard or reference example (stratotype) for defining the stratigraphic characteristics of another entity.
• B. stratotypeRegion
  Indicates the region or geographic area that serves as the reference or standard location (stratotype) for a particular stratigraphic unit or interval.
• C. stratotypeSection
  Indicates the reference rock section formally designated as the standard or type example for a particular stratigraphic unit or boundary.
• D. typeSpecies
  Indicates that a species is the designated type species that defines and anchors the taxonomic concept of a higher-level group (such as a genus).
• E. typeStratum
  Indicates that one entity is classified as a geological or conceptual layer or stratum within which the other entity is situated or to which it belongs.
• F. None of above.