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: Sierra Maestra campaign | Statement: [Raúl Castro, participatedIn, Sierra Maestra campaign]

Target entity: Sierra Maestra campaign
Context triple: [Raúl Castro, participatedIn, Sierra Maestra campaign]

• A. Sierra Maestra campaign chosen
  The Sierra Maestra campaign was the guerrilla warfare phase of the Cuban Revolution in which Fidel Castro’s rebel forces, operating from the Sierra Maestra mountains, built strength and popular support leading to the overthrow of Fulgencio Batista.
• B. Siege of Santiago
  The Siege of Santiago was a decisive 1898 U.S. campaign in Cuba that trapped and forced the surrender of Spanish forces, effectively ending major combat in the Spanish–American War.
• C. Battle of Guadalajara
  The Battle of Guadalajara was a key 1937 Spanish Civil War engagement in which Republican forces, aided by international volunteers, repelled an Italian-led offensive supporting the Nationalists, marking a significant setback for fascist intervention.
• D. Battle of Santa Clara
  The Battle of Santa Clara was a decisive late-1958 engagement in the Cuban Revolution, led in part by Che Guevara, whose victory helped precipitate the collapse of Fulgencio Batista’s regime.
• E. Battle of Monte de las Cruces
  The Battle of Monte de las Cruces was a major early victory for Miguel Hidalgo’s insurgent forces over Spanish royalists in 1810, marking a pivotal moment in the Mexican War of Independence.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.