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: [Army of Northern Virginia, engagedIn, Siege of Petersburg]

Target entity: Siege of Petersburg
Context triple: [Army of Northern Virginia, engagedIn, 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. Siege of Vicksburg
  The Siege of Vicksburg was a pivotal 1863 Union campaign in the American Civil War that secured control of the Mississippi River and split the Confederacy in two.
• C. Battle of Port Hudson
  The Battle of Port Hudson was a major American Civil War siege in Louisiana where Union forces sought to secure control of the Mississippi River by capturing a key Confederate stronghold.
• D. Battle of Fair Oaks
  The Battle of Fair Oaks, also known as the Battle of Seven Pines, was a major 1862 American Civil War engagement near Richmond, Virginia, that halted the Union advance during the Peninsula Campaign and led to Robert E. Lee taking command of the Confederate Army of Northern Virginia.
• E. Battle of Fredericksburg
  The Battle of Fredericksburg was a major American Civil War engagement in December 1862, marked by a decisive Confederate victory and massive Union casualties during repeated frontal assaults against fortified Southern positions in Virginia.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.