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: Grand Canyon stratigraphy | Statement: [Redwall Limestone, partOf, Grand Canyon stratigraphy]

Target entity: Grand Canyon stratigraphy
Context triple: [Redwall Limestone, partOf, Grand Canyon stratigraphy]

• A. Red Rock Canyon sandstone formations
  Red Rock Canyon sandstone formations are striking, multicolored desert rock structures near Las Vegas, Nevada, renowned for their dramatic cliffs, layered geology, and popular hiking and climbing routes.
• B. Grand Staircase of sedimentary rock layers
  The Grand Staircase of sedimentary rock layers is a vast, step-like sequence of colorful cliffs and plateaus in the American Southwest that preserves an exceptionally complete record of Mesozoic and Cenozoic geologic history.
• C. Horseshoe Canyon Formation
  The Horseshoe Canyon Formation is a Late Cretaceous geological formation in Alberta, Canada, renowned for its rich and diverse dinosaur fossil assemblages.
• D. Red Rock escarpment
  The Red Rock escarpment is a striking cliff formation of vivid red sandstone that forms a prominent natural backdrop and scenic highlight in the Pine Creek Canyon area.
• E. Navajo Sandstone canyon
  Navajo Sandstone canyon is a steep-walled, pale reddish-orange sandstone gorge characteristic of the Colorado Plateau, best known for its sheer cliffs, cross-bedded rock formations, and scenic slot canyons.
• 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: Grand Canyon stratigraphy
Triple: [Redwall Limestone, partOf, Grand Canyon stratigraphy]

Grand Canyon stratigraphy is the layered sequence of rock formations exposed in the Grand Canyon that records over a billion years of Earth’s geological history.

Target entity: Grand Canyon stratigraphy
Target entity description: Grand Canyon stratigraphy is the layered sequence of rock formations exposed in the Grand Canyon that records over a billion years of Earth’s geological history.

• A. Red Rock Canyon sandstone formations
  Red Rock Canyon sandstone formations are striking, multicolored desert rock structures near Las Vegas, Nevada, renowned for their dramatic cliffs, layered geology, and popular hiking and climbing routes.
• B. Grand Staircase of sedimentary rock layers
  The Grand Staircase of sedimentary rock layers is a vast, step-like sequence of colorful cliffs and plateaus in the American Southwest that preserves an exceptionally complete record of Mesozoic and Cenozoic geologic history.
• C. Horseshoe Canyon Formation
  The Horseshoe Canyon Formation is a Late Cretaceous geological formation in Alberta, Canada, renowned for its rich and diverse dinosaur fossil assemblages.
• D. Red Rock escarpment
  The Red Rock escarpment is a striking cliff formation of vivid red sandstone that forms a prominent natural backdrop and scenic highlight in the Pine Creek Canyon area.
• E. Navajo Sandstone canyon
  Navajo Sandstone canyon is a steep-walled, pale reddish-orange sandstone gorge characteristic of the Colorado Plateau, best known for its sheer cliffs, cross-bedded rock formations, and scenic slot canyons.
• F. None of above. chosen