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: Princess Helen of Serbia | Statement: [Alexander I of Yugoslavia, sibling, Princess Helen of Serbia]

Target entity: Princess Helen of Serbia
Context triple: [Alexander I of Yugoslavia, sibling, Princess Helen of Serbia]

• A. Princess Olga of Yugoslavia
  Princess Olga of Yugoslavia was a Yugoslav royal princess of the Karađorđević dynasty, known for her prominent role in European aristocratic circles during the early to mid-20th century.
• B. Princess Anastasia of Montenegro
  Princess Anastasia of Montenegro was a Montenegrin princess who became a prominent member of the Russian imperial family through her marriage into the Romanov dynasty.
• C. Princess Elizabeth of Yugoslavia
  Princess Elizabeth of Yugoslavia is a Serbian princess, writer, and humanitarian known for her royal lineage, cultural work, and occasional involvement in Yugoslav and Serbian public life.
• D. Princess Milica of Serbia
  Princess Milica of Serbia was a 14th-century Serbian noblewoman and later regent, revered for her political leadership after the Battle of Kosovo and her role in preserving the Serbian state and Orthodox faith.
• E. Princess Milica of Montenegro
  Princess Milica of Montenegro was a Montenegrin royal and influential Russian court figure known for introducing mystics like Grigori Rasputin to the imperial family.
• 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: Princess Helen of Serbia
Triple: [Alexander I of Yugoslavia, sibling, Princess Helen of Serbia]

Princess Helen of Serbia was a Serbian royal princess of the Karađorđević dynasty, known as the daughter of King Peter I of Serbia and sister of King Alexander I of Yugoslavia.

Target entity: Princess Helen of Serbia
Target entity description: Princess Helen of Serbia was a Serbian royal princess of the Karađorđević dynasty, known as the daughter of King Peter I of Serbia and sister of King Alexander I of Yugoslavia.

• A. Princess Olga of Yugoslavia
  Princess Olga of Yugoslavia was a Yugoslav royal princess of the Karađorđević dynasty, known for her prominent role in European aristocratic circles during the early to mid-20th century.
• B. Princess Anastasia of Montenegro
  Princess Anastasia of Montenegro was a Montenegrin princess who became a prominent member of the Russian imperial family through her marriage into the Romanov dynasty.
• C. Princess Elizabeth of Yugoslavia
  Princess Elizabeth of Yugoslavia is a Serbian princess, writer, and humanitarian known for her royal lineage, cultural work, and occasional involvement in Yugoslav and Serbian public life.
• D. Princess Milica of Serbia
  Princess Milica of Serbia was a 14th-century Serbian noblewoman and later regent, revered for her political leadership after the Battle of Kosovo and her role in preserving the Serbian state and Orthodox faith.
• E. Princess Milica of Montenegro
  Princess Milica of Montenegro was a Montenegrin royal and influential Russian court figure known for introducing mystics like Grigori Rasputin to the imperial family.
• F. None of above. chosen