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: 1867 Alaska Purchase treaty | Statement: [Seward’s Icebox, linkedEvent, 1867 Alaska Purchase treaty]

Target entity: 1867 Alaska Purchase treaty
Context triple: [Seward’s Icebox, linkedEvent, 1867 Alaska Purchase treaty]

• 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. 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.
• C. Treaty of 1837 with the United States
  The Treaty of 1837 with the United States was an agreement in which the Ho-Chunk (Winnebago) Nation ceded large portions of their ancestral lands in the Upper Midwest to the U.S. government, contributing to their forced removal and displacement.
• D. Treaty of Portsmouth
  The Treaty of Portsmouth was the 1905 peace agreement, mediated by U.S. President Theodore Roosevelt in New Hampshire, that ended the Russo-Japanese War and marked Japan’s emergence as a major world power.
• E. Treaty of Guadalupe Hidalgo
  The Treaty of Guadalupe Hidalgo was the 1848 peace agreement that ended the Mexican–American War and transferred vast territories from Mexico to the United States, shaping the modern U.S.–Mexico border.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.