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: California Gold Rush era | Statement: [Kelsey, California, namedForEvent, California Gold Rush era]

Target entity: California Gold Rush era
Context triple: [Kelsey, California, namedForEvent, California Gold Rush era]

• A. California Gold Rush chosen
  The California Gold Rush was a mid-19th-century mass migration and mining boom that rapidly transformed California’s population, economy, and statehood after gold was discovered in 1848.
• B. Colorado Gold Rush
  The Colorado Gold Rush was a mid-19th-century mining boom that drew tens of thousands of prospectors to the Rocky Mountains, spurring rapid settlement and economic development in what is now the state of Colorado.
• C. 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.
• D. Comstock Lode silver rush
  The Comstock Lode silver rush was a mid-19th-century mining boom in Nevada that became one of the first major U.S. silver discoveries, spurring rapid settlement, wealth, and technological innovation in the American West.
• E. Klondike Gold Rush (1897–1898)
  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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.