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: Soviet–Japanese border region | Statement: [Japanese Karafuto garrison, theaterOfOperations, Soviet–Japanese border region]

Target entity: Soviet–Japanese border region
Context triple: [Japanese Karafuto garrison, theaterOfOperations, Soviet–Japanese border region]

• A. Soviet–Japanese border conflicts chosen
  The Soviet–Japanese border conflicts were a series of undeclared military clashes between the Soviet Union (with Mongolia) and Imperial Japan (with Manchukuo) along the Manchurian–Mongolian frontier in the late 1930s, culminating in the large-scale Battle of Khalkhin Gol.
• B. Sakhalin–Kuril Exchange
  The Sakhalin–Kuril Exchange is the common name for the 1875 Treaty of Saint Petersburg between Japan and Russia, which settled territorial disputes by redefining control over Sakhalin and the Kuril Islands.
• C. Mongolia–Manchukuo border
  The Mongolia–Manchukuo border was the frontier between Mongolia and the Japanese puppet state of Manchukuo, notorious as the site of major 1939 clashes between Soviet–Mongolian and Japanese–Manchukuoan forces.
• D. Soviet occupation of southern Sakhalin
  The Soviet occupation of southern Sakhalin was the 1945 takeover and annexation of the southern half of Sakhalin Island from Japan by the Soviet Union at the end of World War II, reshaping control of the region in the postwar settlement.
• E. Soviet occupation of Kuril Islands
  The Soviet occupation of the Kuril Islands was the post–World War II takeover and continued control of the Kuril archipelago by the Soviet Union, which led to a long-standing territorial dispute with Japan.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.