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: Antipope Victor IV | Statement: [Pope Alexander III, opponent, Antipope Victor IV]

Target entity: Antipope Victor IV
Context triple: [Pope Alexander III, opponent, Antipope Victor IV]

• A. antipope Felix V
  Antipope Felix V was the last historical antipope, a 15th-century Duke of Savoy who was elected by the Council of Basel in opposition to Pope Eugene IV.
• B. John XXIII (antipope)
  John XXIII (antipope) was a rival claimant to the papacy during the Western Schism, recognized by the Pisan obedience but later deposed by the Council of Constance.
• C. Honorius II (antipope)
  Honorius II was an 11th-century antipope who opposed the legitimate papacy during the Investiture Controversy, continuing the imperial-backed schismatic line after Clement III.
• D. Wibert of Ravenna (Antipope Clement III)
  Wibert of Ravenna, known as Antipope Clement III, was a rival pope set up by Holy Roman Emperor Henry IV during the Investiture Controversy, serving as the imperial-backed opponent to Pope Gregory VII and his successors.
• E. Paschal III
  Paschal III was a 12th-century antipope who opposed the legitimate papacy during the schism of the Roman Catholic Church with the backing of Holy Roman Emperor Frederick I Barbarossa.
• 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: Antipope Victor IV
Triple: [Pope Alexander III, opponent, Antipope Victor IV]

Antipope Victor IV was a 12th-century claimant to the papacy, backed by Holy Roman Emperor Frederick I Barbarossa in opposition to the legitimate Pope Alexander III during a major schism in the Catholic Church.

Target entity: Antipope Victor IV
Target entity description: Antipope Victor IV was a 12th-century claimant to the papacy, backed by Holy Roman Emperor Frederick I Barbarossa in opposition to the legitimate Pope Alexander III during a major schism in the Catholic Church.

• A. antipope Felix V
  Antipope Felix V was the last historical antipope, a 15th-century Duke of Savoy who was elected by the Council of Basel in opposition to Pope Eugene IV.
• B. John XXIII (antipope)
  John XXIII (antipope) was a rival claimant to the papacy during the Western Schism, recognized by the Pisan obedience but later deposed by the Council of Constance.
• C. Honorius II (antipope)
  Honorius II was an 11th-century antipope who opposed the legitimate papacy during the Investiture Controversy, continuing the imperial-backed schismatic line after Clement III.
• D. Wibert of Ravenna (Antipope Clement III)
  Wibert of Ravenna, known as Antipope Clement III, was a rival pope set up by Holy Roman Emperor Henry IV during the Investiture Controversy, serving as the imperial-backed opponent to Pope Gregory VII and his successors.
• E. Paschal III
  Paschal III was a 12th-century antipope who opposed the legitimate papacy during the schism of the Roman Catholic Church with the backing of Holy Roman Emperor Frederick I Barbarossa.
• F. None of above. chosen