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: Mystici Corporis Christi | Statement: [Pope Pius XII, notableWork, Mystici Corporis Christi]

Target entity: Mystici Corporis Christi
Context triple: [Pope Pius XII, notableWork, Mystici Corporis Christi]

• A. Christus Dominus
  Christus Dominus is a decree of the Second Vatican Council that outlines the pastoral role and responsibilities of Catholic bishops in the Church.
• B. Ineffabilis Deus
  Ineffabilis Deus is the 1854 papal bull issued by Pope Pius IX that solemnly defined the dogma of the Immaculate Conception of the Virgin Mary.
• C. True Devotion to Mary
  True Devotion to Mary is a classic 18th-century Catholic spiritual work by St. Louis de Montfort that teaches total consecration to Jesus through the Virgin Mary.
• D. Membra Jesu nostri
  Membra Jesu nostri is a cycle of seven 17th-century Lutheran cantatas by Dieterich Buxtehude meditating on the crucified body of Christ, and is considered one of his most important sacred vocal works.
• E. Munificentissimus Deus
  Munificentissimus Deus is the 1950 apostolic constitution by Pope Pius XII that solemnly defined the dogma of the Assumption of the Blessed Virgin Mary in the Roman Catholic Church.
• 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: Mystici Corporis Christi
Triple: [Pope Pius XII, notableWork, Mystici Corporis Christi]

Mystici Corporis Christi is a 1943 encyclical by Pope Pius XII that systematically explains the Catholic doctrine of the Church as the Mystical Body of Christ, emphasizing its spiritual unity and hierarchical structure.

Target entity: Mystici Corporis Christi
Target entity description: Mystici Corporis Christi is a 1943 encyclical by Pope Pius XII that systematically explains the Catholic doctrine of the Church as the Mystical Body of Christ, emphasizing its spiritual unity and hierarchical structure.

• A. Christus Dominus
  Christus Dominus is a decree of the Second Vatican Council that outlines the pastoral role and responsibilities of Catholic bishops in the Church.
• B. Ineffabilis Deus
  Ineffabilis Deus is the 1854 papal bull issued by Pope Pius IX that solemnly defined the dogma of the Immaculate Conception of the Virgin Mary.
• C. True Devotion to Mary
  True Devotion to Mary is a classic 18th-century Catholic spiritual work by St. Louis de Montfort that teaches total consecration to Jesus through the Virgin Mary.
• D. Membra Jesu nostri
  Membra Jesu nostri is a cycle of seven 17th-century Lutheran cantatas by Dieterich Buxtehude meditating on the crucified body of Christ, and is considered one of his most important sacred vocal works.
• E. Munificentissimus Deus
  Munificentissimus Deus is the 1950 apostolic constitution by Pope Pius XII that solemnly defined the dogma of the Assumption of the Blessed Virgin Mary in the Roman Catholic Church.
• F. None of above. chosen