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: Kenneth McKellar | Statement: [81st United States Congress, presidentProTempore, Kenneth McKellar]

Target entity: Kenneth McKellar
Context triple: [81st United States Congress, presidentProTempore, Kenneth McKellar]

• A. Graeme Gibson
  Graeme Gibson was a Canadian novelist, environmentalist, and cultural advocate known for his contributions to Canadian literature and his long partnership with writer Margaret Atwood.
• B. Graeme Ferguson
  Graeme Ferguson was a Canadian filmmaker and co-founder of the IMAX large-format cinema technology.
• C. Nathan Phillips
  Nathan Phillips was a prominent Canadian politician who served as the reform-minded mayor of Toronto in the 1950s and early 1960s.
• D. Kenneth Murray
  Kenneth Murray is a biochemist and biotechnology entrepreneur best known as a co-founder of the biopharmaceutical company Biogen.
• E. Kenneth Peach
  Kenneth Peach was an American cinematographer best known for his work on early Hollywood films, including pioneering visual effects and photography on the original 1933 King Kong.
• 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: Kenneth McKellar
Triple: [81st United States Congress, presidentProTempore, Kenneth McKellar]

Kenneth McKellar was a long-serving Democratic U.S. Senator from Tennessee who became one of the most powerful legislators of his era through his seniority and control over appropriations.

Target entity: Kenneth McKellar
Target entity description: Kenneth McKellar was a long-serving Democratic U.S. Senator from Tennessee who became one of the most powerful legislators of his era through his seniority and control over appropriations.

• A. Graeme Gibson
  Graeme Gibson was a Canadian novelist, environmentalist, and cultural advocate known for his contributions to Canadian literature and his long partnership with writer Margaret Atwood.
• B. Graeme Ferguson
  Graeme Ferguson was a Canadian filmmaker and co-founder of the IMAX large-format cinema technology.
• C. Nathan Phillips
  Nathan Phillips was a prominent Canadian politician who served as the reform-minded mayor of Toronto in the 1950s and early 1960s.
• D. Kenneth Murray
  Kenneth Murray is a biochemist and biotechnology entrepreneur best known as a co-founder of the biopharmaceutical company Biogen.
• E. Kenneth Peach
  Kenneth Peach was an American cinematographer best known for his work on early Hollywood films, including pioneering visual effects and photography on the original 1933 King Kong.
• F. None of above. chosen

Target predicate: presidentProTempore
Context triple: [81st United States Congress, presidentProTempore, Kenneth McKellar]

• A. majorityLeaderOfTheSenate
  Indicates that one entity holds the position of majority leader in the Senate, serving as the primary legislative and strategic leader for the majority party in that chamber in relation to the Senate entity.
• B. majorityLeaderOfTheHouse
  Indicates that the subject serves as the primary elected leader of the majority party in a legislative house, responsible for managing its agenda and floor activities.
• C. vicePresident
  Indicates that one entity holds the role of second-in-command or deputy leader to another entity within an organizational or governmental hierarchy.
• D. houseMinorityLeader
  Indicates the relationship in which a person holds the position of leader of the minority party in a legislative house.
• E. vicePresidentElect
  Indicates that the subject is the person chosen to become vice president of the object (such as a country or organization) but has not yet assumed the office.
• F. None of above. chosen