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: Maria of Tver | Statement: [Ivan I of Moscow, mother, Maria of Tver]

Target entity: Maria of Tver
Context triple: [Ivan I of Moscow, mother, Maria of Tver]

• A. Anna of Moscow
  Anna of Moscow was a Russian princess from the Grand Duchy of Moscow who became Byzantine empress consort through her marriage to Emperor John VIII Palaiologos.
• B. Maria of Borovsk
  Maria of Borovsk was a 15th-century Russian princess and Grand Princess of Moscow, known primarily as the wife of Grand Prince Vasily II and the mother of Ivan III, who greatly expanded the Russian state.
• C. Anna of Russia
  Anna of Russia was Empress of Russia from 1730 to 1740, known for her autocratic rule, reliance on Baltic German advisers, and the continuation of Peter the Great’s westernizing policies.
• D. Anna Mstislavna of Novgorod
  Anna Mstislavna of Novgorod was a 13th-century Rus' princess from the ruling house of Novgorod who became a prominent dynastic figure through her marriage into the Galician-Volhynian principality and as the mother of King Leo I of Galicia.
• E. Rogneda of Polotsk
  Rogneda of Polotsk was a 10th-century princess of the Principality of Polotsk and a consort of Kievan ruler Vladimir the Great, known for her significant role in the early history of Kievan Rus'.
• 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: Maria of Tver
Triple: [Ivan I of Moscow, mother, Maria of Tver]

Maria of Tver was a 14th-century Russian princess from the ruling house of Tver and the first wife of Grand Prince Yuri of Moscow, making her an important dynastic figure in the early history of the Grand Duchy of Moscow.

Target entity: Maria of Tver
Target entity description: Maria of Tver was a 14th-century Russian princess from the ruling house of Tver and the first wife of Grand Prince Yuri of Moscow, making her an important dynastic figure in the early history of the Grand Duchy of Moscow.

• A. Anna of Moscow
  Anna of Moscow was a Russian princess from the Grand Duchy of Moscow who became Byzantine empress consort through her marriage to Emperor John VIII Palaiologos.
• B. Maria of Borovsk
  Maria of Borovsk was a 15th-century Russian princess and Grand Princess of Moscow, known primarily as the wife of Grand Prince Vasily II and the mother of Ivan III, who greatly expanded the Russian state.
• C. Anna of Russia
  Anna of Russia was Empress of Russia from 1730 to 1740, known for her autocratic rule, reliance on Baltic German advisers, and the continuation of Peter the Great’s westernizing policies.
• D. Anna Mstislavna of Novgorod
  Anna Mstislavna of Novgorod was a 13th-century Rus' princess from the ruling house of Novgorod who became a prominent dynastic figure through her marriage into the Galician-Volhynian principality and as the mother of King Leo I of Galicia.
• E. Rogneda of Polotsk
  Rogneda of Polotsk was a 10th-century princess of the Principality of Polotsk and a consort of Kievan ruler Vladimir the Great, known for her significant role in the early history of Kievan Rus'.
• F. None of above. chosen