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: Serbian Campaign of 1915 | Statement: [August von Mackensen, battle, Serbian Campaign of 1915]

Target entity: Serbian Campaign of 1915
Context triple: [August von Mackensen, battle, Serbian Campaign of 1915]

• A. Invasion of Serbia (1915) chosen
  The Invasion of Serbia (1915) was a Central Powers offensive during World War I that overwhelmed Serbian forces, leading to the occupation of Serbia and a massive civilian and military retreat through Albania.
• B. Balkan Campaign
  The Balkan Campaign was a series of World War II military operations in southeastern Europe, primarily involving Axis invasions of Yugoslavia and Greece in 1941.
• C. Balkan Wars
  The Balkan Wars were two early 20th-century conflicts in Southeastern Europe in which Balkan states fought the Ottoman Empire and then each other, reshaping regional borders and heightening tensions that helped set the stage for World War I.
• D. Serbo-Bulgarian War
  The Serbo-Bulgarian War was a brief 1885 conflict in the Balkans between Serbia and the newly unified Bulgaria that helped establish Bulgaria’s military reputation and reshape regional power dynamics.
• E. Balkan theatre of World War I
  The Balkan theatre of World War I was a major front in Southeastern Europe where the Allies and Central Powers fought over control of the Balkans, involving campaigns in Serbia, Macedonia, Greece, and surrounding regions.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.