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: San Juan city walls | Statement: [Atlantic coastal defenses of Puerto Rico, includes, San Juan city walls]

Target entity: San Juan city walls
Context triple: [Atlantic coastal defenses of Puerto Rico, includes, San Juan city walls]

• A. San Juan city walls chosen
  The San Juan city walls are massive 16th–18th century fortifications encircling Old San Juan, Puerto Rico, built by the Spanish to defend the colonial port from seaborne attacks.
• B. Walls of Cartagena de Indias
  The Walls of Cartagena de Indias are a monumental colonial-era fortification encircling the historic center of Cartagena, Colombia, built by the Spanish to protect the city from pirate attacks and invasions in the Caribbean.
• C. Castillo San Cristóbal
  Castillo San Cristóbal is a massive 18th-century Spanish fortress in San Juan, Puerto Rico, built to protect the city from land-based attacks and now part of a UNESCO World Heritage Site.
• D. La Cabaña Fortress
  La Cabaña Fortress is a massive 18th-century Spanish colonial fortification in Havana, Cuba, historically used for military defense and later as a prison and cultural site.
• E. Fort Santiago de la Gloria
  Fort Santiago de la Gloria is a historic Spanish colonial fortification in Portobelo, Panama, built to defend the town’s strategic Caribbean harbor and its role in the transatlantic trade.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.