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: M-21 | Statement: [Grattan Township, Michigan, roadAccessVia, M-21]

Target entity: M-21
Context triple: [Grattan Township, Michigan, roadAccessVia, M-21]

• A. M-21
  The M-21 was a specialized variant of the Lockheed A-12 reconnaissance aircraft, modified to carry and launch the D-21 unmanned reconnaissance drone from its back at high altitude and speed.
• B. M-22
  M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
• C. M-2
  M-2 is a major motorway designated as route M-2, typically serving as an important high-speed road corridor in its region.
• D. M-20
  M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
• E. M-102
  M-102 is a state trunkline highway in Michigan best known as Detroit’s Eight Mile Road, a major east–west thoroughfare that serves as a cultural and socioeconomic dividing line in the region.
• 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: M-21
Triple: [Grattan Township, Michigan, roadAccessVia, M-21]

M-21 is a state highway in Michigan that serves as an important east–west transportation route across the central part of the state.

Target entity: M-21
Target entity description: M-21 is a state highway in Michigan that serves as an important east–west transportation route across the central part of the state.

• A. M-21
  The M-21 was a specialized variant of the Lockheed A-12 reconnaissance aircraft, modified to carry and launch the D-21 unmanned reconnaissance drone from its back at high altitude and speed.
• B. M-22
  M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
• C. M-2
  M-2 is a major motorway designated as route M-2, typically serving as an important high-speed road corridor in its region.
• D. M-20
  M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
• E. M-102
  M-102 is a regional road in the Community of Madrid, Spain, that provides access to and from the town of Torrelaguna.
• F. None of above. chosen