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: Yukon Gold Rush era | Statement: [Gray Beaver, culturalContext, Yukon Gold Rush era]

Target entity: Yukon Gold Rush era
Context triple: [Gray Beaver, culturalContext, Yukon Gold Rush era]

• A. Klondike Gold Rush (1897–1898) chosen
  The Klondike Gold Rush (1897–1898) was a massive influx of prospectors to Canada's Yukon region after gold was discovered there, dramatically transforming the economy, infrastructure, and settlement of northwestern North America.
• B. Alaskan gold rush
  The Alaskan gold rush was a late-19th- and early-20th-century stampede of prospectors to Alaska and the Yukon in search of gold, dramatically reshaping the region’s economy, demographics, and frontier culture.
• C. Montana gold rush
  The Montana gold rush was a mid-19th-century mining boom in what is now Montana that drew thousands of prospectors, rapidly spurred settlement, and transformed the region’s economy and towns.
• D. Cariboo Gold Rush
  The Cariboo Gold Rush was a major 1860s gold-mining boom in British Columbia’s Cariboo region that spurred rapid settlement, economic growth, and the construction of the Cariboo Road.
• E. Black Hills Gold Rush
  The Black Hills Gold Rush was a late-19th-century gold boom in the Black Hills of present-day South Dakota and Wyoming that drew thousands of prospectors onto sacred Lakota lands, intensifying conflicts between the U.S. government and Native American tribes.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.