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: Frederick William, Grand Duke of Mecklenburg-Strelitz | Statement: [Princess Augusta of Cambridge, spouse, Frederick William, Grand Duke of Mecklenburg-Strelitz]

Target entity: Frederick William, Grand Duke of Mecklenburg-Strelitz
Context triple: [Princess Augusta of Cambridge, spouse, Frederick William, Grand Duke of Mecklenburg-Strelitz]

• A. Frederick William I, Duke of Mecklenburg-Schwerin
  Frederick William I, Duke of Mecklenburg-Schwerin, was an 18th-century German nobleman who ruled the duchy of Mecklenburg-Schwerin within the Holy Roman Empire.
• B. Frederick William, Duke of Brunswick-Wolfenbüttel
  Frederick William, Duke of Brunswick-Wolfenbüttel was a German nobleman and military leader who ruled the Duchy of Brunswick in the early 19th century and became known for his opposition to Napoleonic domination.
• C. Frederick William II of Prussia
  Frederick William II of Prussia was King of Prussia from 1786 to 1797, known for his less militaristic rule than his predecessor Frederick the Great and for overseeing both territorial gains and growing internal weaknesses in the Prussian state.
• D. Frederick William, Margrave of Brandenburg-Schwedt
  Frederick William, Margrave of Brandenburg-Schwedt, was an 18th-century Prussian prince and military leader from a cadet branch of the House of Hohenzollern who held the titular margravial dignity in Brandenburg-Schwedt.
• E. Frederick William, Landgrave of Hesse-Kassel
  Frederick William, Landgrave of Hesse-Kassel, was a 19th-century German nobleman and military officer from the House of Hesse who became notable through his dynastic ties to the Russian 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: Frederick William, Grand Duke of Mecklenburg-Strelitz
Triple: [Princess Augusta of Cambridge, spouse, Frederick William, Grand Duke of Mecklenburg-Strelitz]

Frederick William, Grand Duke of Mecklenburg-Strelitz, was a 19th-century German sovereign who ruled the small Grand Duchy of Mecklenburg-Strelitz and was connected to the British royal family through his marriage to Princess Augusta of Cambridge.

Target entity: Frederick William, Grand Duke of Mecklenburg-Strelitz
Target entity description: Frederick William, Grand Duke of Mecklenburg-Strelitz, was a 19th-century German sovereign who ruled the small Grand Duchy of Mecklenburg-Strelitz and was connected to the British royal family through his marriage to Princess Augusta of Cambridge.

• A. Frederick William I, Duke of Mecklenburg-Schwerin
  Frederick William I, Duke of Mecklenburg-Schwerin, was an 18th-century German nobleman who ruled the duchy of Mecklenburg-Schwerin within the Holy Roman Empire.
• B. Frederick William, Duke of Brunswick-Wolfenbüttel
  Frederick William, Duke of Brunswick-Wolfenbüttel was a German nobleman and military leader who ruled the Duchy of Brunswick in the early 19th century and became known for his opposition to Napoleonic domination.
• C. Frederick William II of Prussia
  Frederick William II of Prussia was King of Prussia from 1786 to 1797, known for his less militaristic rule than his predecessor Frederick the Great and for overseeing both territorial gains and growing internal weaknesses in the Prussian state.
• D. Frederick William, Margrave of Brandenburg-Schwedt
  Frederick William, Margrave of Brandenburg-Schwedt, was an 18th-century Prussian prince and military leader from a cadet branch of the House of Hohenzollern who held the titular margravial dignity in Brandenburg-Schwedt.
• E. Frederick William, Landgrave of Hesse-Kassel
  Frederick William, Landgrave of Hesse-Kassel, was a 19th-century German nobleman and military officer from the House of Hesse who became notable through his dynastic ties to the Russian imperial family.
• F. None of above. chosen