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: Matthias Graf | Statement: [Einsatzgruppen Trial, defendantsIncluded, Matthias Graf]

Target entity: Matthias Graf
Context triple: [Einsatzgruppen Trial, defendantsIncluded, Matthias Graf]

• A. Maximilian von Welsch
  Maximilian von Welsch was a prominent German Baroque architect known for his work on major princely residences and fortifications in the early 18th century.
• B. Matthias Koenigswieser
  Matthias Koenigswieser is a cinematographer known for his work on feature films such as the live-action Disney movie "Christopher Robin."
• C. Christoph von Graffenried
  Christoph von Graffenried was a Swiss nobleman and colonial entrepreneur best known for leading and founding the early 18th-century settlement of New Bern in what is now North Carolina.
• D. Maximilian von Laffert
  Maximilian von Laffert was a German general of the First World War, noted for leading German forces during the Battle of Fromelles on the Western Front.
• E. Hannes Graff
  Hannes Graff is the young, idealistic protagonist of John Irving’s debut novel "Setting Free the Bears," whose adventures in postwar Austria revolve around a quixotic plan to liberate zoo animals.
• 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: Matthias Graf
Triple: [Einsatzgruppen Trial, defendantsIncluded, Matthias Graf]

Matthias Graf was a Nazi official who served as a defendant in the post-World War II Einsatzgruppen Trial for his involvement in mobile killing unit atrocities.

Target entity: Matthias Graf
Target entity description: Matthias Graf was a Nazi official who served as a defendant in the post-World War II Einsatzgruppen Trial for his involvement in mobile killing unit atrocities.

• A. Maximilian von Welsch
  Maximilian von Welsch was a prominent German Baroque architect known for his work on major princely residences and fortifications in the early 18th century.
• B. Matthias Koenigswieser
  Matthias Koenigswieser is a cinematographer known for his work on feature films such as the live-action Disney movie "Christopher Robin."
• C. Christoph von Graffenried
  Christoph von Graffenried was a Swiss nobleman and colonial entrepreneur best known for leading and founding the early 18th-century settlement of New Bern in what is now North Carolina.
• D. Maximilian von Laffert
  Maximilian von Laffert was a German general of the First World War, noted for leading German forces during the Battle of Fromelles on the Western Front.
• E. Hannes Graff
  Hannes Graff is the young, idealistic protagonist of John Irving’s debut novel "Setting Free the Bears," whose adventures in postwar Austria revolve around a quixotic plan to liberate zoo animals.
• F. None of above. chosen