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: Mercury Seven | Statement: [Mercury program, selectedAstronautGroup, Mercury Seven]

Target entity: Mercury Seven
Context triple: [Mercury program, selectedAstronautGroup, Mercury Seven]

• A. Mercury program
  The Mercury program was the United States' first human spaceflight initiative, designed to send American astronauts into space and orbit Earth during the early 1960s.
• B. Le Shuttle
  Le Shuttle is a vehicle-carrying rail service that transports cars, trucks, and passengers through the Channel Tunnel between the United Kingdom and France.
• C. Apollo 11
  Apollo 11 was the historic 1969 spaceflight that first landed humans on the Moon and safely returned them to Earth.
• D. NASA Astronaut Group 8
  NASA Astronaut Group 8 was a 1978 class of NASA astronauts notable for including the first American women and minority astronauts, marking a major step toward a more diverse astronaut corps.
• E. Apollo 8
  Apollo 8 was the 1968 NASA mission that first carried humans into orbit around the Moon, marking a pivotal milestone in the space race and lunar exploration.
• 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: Mercury Seven
Triple: [Mercury program, selectedAstronautGroup, Mercury Seven]

Mercury Seven were the first group of American astronauts, chosen in 1959 to pioneer NASA’s manned spaceflight efforts during the early Space Race.

Target entity: Mercury Seven
Target entity description: Mercury Seven were the first group of American astronauts, chosen in 1959 to pioneer NASA’s manned spaceflight efforts during the early Space Race.

• A. Mercury program
  The Mercury program was the United States' first human spaceflight initiative, designed to send American astronauts into space and orbit Earth during the early 1960s.
• B. Le Shuttle
  Le Shuttle is a vehicle-carrying rail service that transports cars, trucks, and passengers through the Channel Tunnel between the United Kingdom and France.
• C. Apollo 11
  Apollo 11 was the historic 1969 spaceflight that first landed humans on the Moon and safely returned them to Earth.
• D. NASA Astronaut Group 8
  NASA Astronaut Group 8 was a 1978 class of NASA astronauts notable for including the first American women and minority astronauts, marking a major step toward a more diverse astronaut corps.
• E. Apollo 8
  Apollo 8 was the 1968 NASA mission that first carried humans into orbit around the Moon, marking a pivotal milestone in the space race and lunar exploration.
• F. None of above. chosen

Target predicate: selectedAstronautGroup
Context triple: [Mercury program, selectedAstronautGroup, Mercury Seven]

• A. hasAstronautCorps chosen
  Indicates that an organization or country maintains an official group of trained astronauts.
• B. firstCrewedTestFlightCrew
  Indicates that the subject is a member of the crew on the first crewed test flight of the referenced vehicle or mission.
• C. spaceAgency
  Indicates that one entity is a space agency that operates, manages, or oversees space-related missions, programs, or activities on behalf of the other entity.
• D. carriedAstronaut
  Indicates that one entity transported or bore an astronaut from one place or state to another.
• E. hasSpacecraftNamedAfter
  Indicates that one entity has a spacecraft that is named after another entity.
• F. None of above.