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: Pembina Member | Statement: [Pierre Shale, hasSubunits, Pembina Member]

Target entity: Pembina Member
Context triple: [Pierre Shale, hasSubunits, Pembina Member]

• A. Scollard Formation
  The Scollard Formation is a Late Cretaceous to early Paleocene geological formation in Alberta, Canada, known for preserving diverse dinosaur fossils and evidence of the Cretaceous–Paleogene boundary.
• B. Dakota Formation
  The Dakota Formation is a widespread Cretaceous sedimentary rock unit in North America, noted for its sandstone deposits that record the advance of the Western Interior Seaway and preserve abundant plant and dinosaur fossils.
• C. Morrison Formation
  The Morrison Formation is a vast Late Jurassic sedimentary rock formation in the western United States renowned for its exceptionally rich assemblage of dinosaur fossils, including iconic sauropods and theropods.
• D. Kiowa Formation
  The Kiowa Formation is a Cretaceous geologic unit in the central United States, known for its marine sediments that record an early transgression of the Western Interior Seaway.
• E. Gaskiers Formation
  The Gaskiers Formation is a Neoproterozoic rock unit in Newfoundland, Canada, notable for preserving geological evidence of one of the late Precambrian global glaciations.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

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]"

Entity: Pembina Member
Triple: [Pierre Shale, hasSubunits, Pembina Member]

The Pembina Member is a stratigraphic subdivision of the Pierre Shale, representing a distinct sedimentary unit recognized in Late Cretaceous rock sequences of the Western Interior of North America.

Target entity: Pembina Member
Target entity description: The Pembina Member is a stratigraphic subdivision of the Pierre Shale, representing a distinct sedimentary unit recognized in Late Cretaceous rock sequences of the Western Interior of North America.

• A. Scollard Formation
  The Scollard Formation is a Late Cretaceous to early Paleocene geological formation in Alberta, Canada, known for preserving diverse dinosaur fossils and evidence of the Cretaceous–Paleogene boundary.
• B. Dakota Formation
  The Dakota Formation is a widespread Cretaceous sedimentary rock unit in North America, noted for its sandstone deposits that record the advance of the Western Interior Seaway and preserve abundant plant and dinosaur fossils.
• C. Morrison Formation
  The Morrison Formation is a vast Late Jurassic sedimentary rock formation in the western United States renowned for its exceptionally rich assemblage of dinosaur fossils, including iconic sauropods and theropods.
• D. Kiowa Formation
  The Kiowa Formation is a Cretaceous geologic unit in the central United States, known for its marine sediments that record an early transgression of the Western Interior Seaway.
• E. Gaskiers Formation
  The Gaskiers Formation is a Neoproterozoic rock unit in Newfoundland, Canada, notable for preserving geological evidence of one of the late Precambrian global glaciations.
• F. None of above. chosen