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: Siege of Petersburg | Statement: [Appomattox Campaign, followed, Siege of Petersburg]

Target entity: Siege of Petersburg
Context triple: [Appomattox Campaign, followed, Siege of Petersburg]

• A. Siege of Petersburg chosen
  The Siege of Petersburg was a prolonged series of trench warfare operations in 1864–1865 around Petersburg, Virginia, whose eventual Union victory cut off Confederate supply lines and led directly to the fall of Richmond and the end of the American Civil War.
• B. Second Battle of Petersburg
  The Second Battle of Petersburg was a key June 1864 American Civil War clash in Virginia in which failed Union assaults against Confederate defenses led directly to the prolonged Siege of Petersburg.
• C. Third Battle of Petersburg
  The Third Battle of Petersburg was the decisive Union assault in April 1865 that broke Confederate defenses around Petersburg, leading directly to the fall of Richmond and the endgame of the American Civil War.
• D. Richmond–Petersburg Campaign
  The Richmond–Petersburg Campaign was a prolonged series of American Civil War battles in 1864–1865 in which Union forces sought to cut off and capture the Confederate strongholds of Richmond and Petersburg, leading directly to the collapse of the Confederacy.
• E. Battle of Cold Harbor
  The Battle of Cold Harbor was a major and notoriously bloody 1864 Civil War engagement near Richmond, Virginia, in which Confederate forces under Robert E. Lee repelled repeated Union assaults during Ulysses S. Grant’s Overland Campaign.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.