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: Alaska Purchase | Statement: [Alaska territorial era, hasCause, Alaska Purchase]

Target entity: Alaska Purchase
Context triple: [Alaska territorial era, hasCause, Alaska Purchase]

• A. Alaska Purchase chosen
  The Alaska Purchase was the 1867 transaction in which the United States bought the Alaska territory from the Russian Empire, significantly expanding U.S. land holdings in North America.
• B. Louisiana Purchase
  The Louisiana Purchase was an 1803 land deal in which the United States bought a vast territory from France, doubling the nation's size and securing control of the Mississippi River region.
• C. Treaty of Cession (1867)
  The Treaty of Cession (1867) was the agreement by which the Russian Empire sold Alaska to the United States, a purchase initially derided as “Seward’s Folly” but later recognized as strategically and economically significant.
• D. Gadsden Purchase agreement
  The Gadsden Purchase agreement was an 1853 treaty between the United States and Mexico in which the U.S. bought a strip of land in present-day southern Arizona and New Mexico to facilitate a southern transcontinental railroad and finalize the continental border.
• E. Annexation of Hawaii by the United States in 1898
  The Annexation of Hawaii by the United States in 1898 was the formal incorporation of the Hawaiian Islands into U.S. territory, ending the sovereignty of the Hawaiian Kingdom and paving the way for Hawaii’s eventual statehood.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.