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: Duke Alexander of Mecklenburg | Statement: [Frederick Francis II, Grand Duke of Mecklenburg-Schwerin, child, Duke Alexander of Mecklenburg]

Target entity: Duke Alexander of Mecklenburg
Context triple: [Frederick Francis II, Grand Duke of Mecklenburg-Schwerin, child, Duke Alexander of Mecklenburg]

• A. Duke John Albert of Mecklenburg
  Duke John Albert of Mecklenburg was a German nobleman and member of the grand ducal house of Mecklenburg-Schwerin who held various military and political roles in the late 19th and early 20th centuries.
• B. Georg Alexander, Duke of Mecklenburg
  Georg Alexander, Duke of Mecklenburg was a 20th-century German nobleman from the House of Mecklenburg-Strelitz who held a ducal title within the historical Grand Duchy of Mecklenburg.
• C. Duke Adolf Friedrich of Mecklenburg
  Duke Adolf Friedrich of Mecklenburg was a German nobleman from the House of Mecklenburg who became known for his roles as a colonial official and explorer in Africa during the late 19th and early 20th centuries.
• D. Albert II, Duke of Mecklenburg
  Albert II, Duke of Mecklenburg, was a 14th-century German prince of the House of Mecklenburg who ruled the Mecklenburg region in northern Germany and played a role in the politics of the Holy Roman Empire.
• E. Duke Henry of Mecklenburg-Schwerin
  Duke Henry of Mecklenburg-Schwerin was a German-born prince who became the prince consort of Queen Wilhelmina of the Netherlands.
• 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: Duke Alexander of Mecklenburg
Triple: [Frederick Francis II, Grand Duke of Mecklenburg-Schwerin, child, Duke Alexander of Mecklenburg]

Duke Alexander of Mecklenburg was a 19th-century German nobleman from the ruling house of Mecklenburg-Schwerin and a son of Grand Duke Frederick Francis II.

Target entity: Duke Alexander of Mecklenburg
Target entity description: Duke Alexander of Mecklenburg was a 19th-century German nobleman from the ruling house of Mecklenburg-Schwerin and a son of Grand Duke Frederick Francis II.

• A. Duke John Albert of Mecklenburg
  Duke John Albert of Mecklenburg was a German nobleman and member of the grand ducal house of Mecklenburg-Schwerin who held various military and political roles in the late 19th and early 20th centuries.
• B. Georg Alexander, Duke of Mecklenburg
  Georg Alexander, Duke of Mecklenburg was a 20th-century German nobleman from the House of Mecklenburg-Strelitz who held a ducal title within the historical Grand Duchy of Mecklenburg.
• C. Duke Adolf Friedrich of Mecklenburg
  Duke Adolf Friedrich of Mecklenburg was a German nobleman from the House of Mecklenburg who became known for his roles as a colonial official and explorer in Africa during the late 19th and early 20th centuries.
• D. Albert II, Duke of Mecklenburg
  Albert II, Duke of Mecklenburg, was a 14th-century German prince of the House of Mecklenburg who ruled the Mecklenburg region in northern Germany and played a role in the politics of the Holy Roman Empire.
• E. Duke Henry of Mecklenburg-Schwerin
  Duke Henry of Mecklenburg-Schwerin was a German-born prince who became the prince consort of Queen Wilhelmina of the Netherlands.
• F. None of above. chosen