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: Northern Expedition to unify China | Statement: [Warlord Era, significantEvent, Northern Expedition to unify China]

Target entity: Northern Expedition to unify China
Context triple: [Warlord Era, significantEvent, Northern Expedition to unify China]

• A. Qin conquest of rival states
  The Qin conquest of rival states was the late 3rd-century BCE military campaign through which the Qin state defeated and annexed the other major Chinese states, leading to the first unification of China under the Qin dynasty.
• B. Great Northern Expedition
  The Great Northern Expedition was a massive 18th-century Russian exploration program, led in part by Vitus Bering, that charted much of the Arctic and North Pacific coasts and confirmed the separation of Asia and North America.
• C. Northern Expedition capture of Wuhan chosen
  The Northern Expedition capture of Wuhan was a key 1927 Nationalist military victory that secured a major central Chinese city and significantly advanced the Kuomintang’s unification of China.
• D. Chu–Han Contention
  The Chu–Han Contention was a civil war (206–202 BCE) between the Chu and Han states that led to the founding of China’s Han dynasty.
• E. Zhongyuan War
  The Zhongyuan War was a major 1930 Chinese civil conflict in which regional warlords challenged Chiang Kai-shek’s Nationalist government for control of central China.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.