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: Riek Machar | Statement: [South Sudanese Civil War, headOfOppositionSide, Riek Machar]

Target entity: Riek Machar
Context triple: [South Sudanese Civil War, headOfOppositionSide, Riek Machar]

• A. Salva Kiir Mayardit
  Salva Kiir Mayardit is a South Sudanese politician and military leader who has served as the country’s president since its independence in 2011.
• B. Gawar Nuer
  Gawar Nuer is a dialect of the Nuer language spoken by the Gawar subgroup of the Nuer people in South Sudan.
• C. John Garang
  John Garang was a Sudanese revolutionary leader and founder of the Sudan People’s Liberation Movement/Army who played a central role in the Second Sudanese Civil War and the eventual creation of South Sudan.
• D. Bor Dinka
  Bor Dinka are a prominent subgroup of the Dinka people of South Sudan, known for their Nilotic pastoralist culture, cattle herding traditions, and significant role in the country’s political and social history.
• E. Kipsigis
  Kipsigis is a Southern Nilotic language spoken primarily by the Kipsigis people of Kenya, who are part of the larger Kalenjin ethnic group.
• 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: Riek Machar
Triple: [South Sudanese Civil War, headOfOppositionSide, Riek Machar]

Riek Machar is a South Sudanese politician and rebel leader who has served as a key opposition figure and former vice president in the country’s turbulent post-independence politics.

Target entity: Riek Machar
Target entity description: Riek Machar is a South Sudanese politician and rebel leader who has served as a key opposition figure and former vice president in the country’s turbulent post-independence politics.

• A. Salva Kiir Mayardit
  Salva Kiir Mayardit is a South Sudanese politician and military leader who has served as the country’s president since its independence in 2011.
• B. Gawar Nuer
  Gawar Nuer is a dialect of the Nuer language spoken by the Gawar subgroup of the Nuer people in South Sudan.
• C. John Garang
  John Garang was a Sudanese revolutionary leader and founder of the Sudan People’s Liberation Movement/Army who played a central role in the Second Sudanese Civil War and the eventual creation of South Sudan.
• D. Bor Dinka
  Bor Dinka are a prominent subgroup of the Dinka people of South Sudan, known for their Nilotic pastoralist culture, cattle herding traditions, and significant role in the country’s political and social history.
• E. Kipsigis
  Kipsigis is a Southern Nilotic language spoken primarily by the Kipsigis people of Kenya, who are part of the larger Kalenjin ethnic group.
• F. None of above. chosen

Target predicate: headOfOppositionSide
Context triple: [South Sudanese Civil War, headOfOppositionSide, Riek Machar]

• A. oppositionLeader chosen
  Indicates that one entity serves as the primary political leader of the opposition in relation to another governing entity.
• B. opposedLeader
  Indicates that one entity actively resisted, challenged, or worked against the leadership or authority of another entity.
• C. primaryOpposingLeader
  Indicates that one entity serves as the main or chief leader directly opposing another entity in a conflict, competition, or political context.
• D. mainOpposingPolitician
  Indicates that one politician is the primary political rival or adversary of another.
• E. headOfCoalition
  Indicates that one entity serves as the leader or primary authority of a coalition formed by multiple entities.
• F. None of above.