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: Rocky Mountain fur trade | Statement: [Green River Rendezvous Days, theme, Rocky Mountain fur trade]

Target entity: Rocky Mountain fur trade
Context triple: [Green River Rendezvous Days, theme, Rocky Mountain fur trade]

• A. Rocky Mountains fur trade chosen
  The Rocky Mountains fur trade was a 19th-century North American economic and exploration enterprise centered on trapping and trading animal pelts in the Rocky Mountain region, involving mountain men, Native American tribes, and fur companies.
• B. Great Lakes fur trade
  The Great Lakes fur trade was a major early North American economic network in which Indigenous peoples and European traders exchanged animal pelts—especially beaver—for manufactured goods, shaping the region’s exploration, settlement, and cultural interactions.
• C. Red River trade
  Red River trade refers to the historical commerce and transportation network along the Red River that shaped the economic and cultural development of the Ark-La-Tex region.
• D. Russian fur trade era
  The Russian fur trade era was a period from the late 18th to mid-19th century when Russian explorers, traders, and the Russian-American Company exploited North Pacific sea otter and other fur resources, profoundly impacting Indigenous peoples and shaping early colonial history in Alaska.
• E. Atlantic fur trade
  The Atlantic fur trade was a vast early modern commercial network linking European markets with North American and other Atlantic-world regions through the exchange of animal pelts, especially beaver, for manufactured goods and other commodities.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.