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: Hellgate Treaty of 1855 | Statement: [Flathead (Salish) people, historicalEvent, Hellgate Treaty of 1855]

Target entity: Hellgate Treaty of 1855
Context triple: [Flathead (Salish) people, historicalEvent, Hellgate Treaty of 1855]

• A. Hellgate Treaty of 1855 chosen
  The Hellgate Treaty of 1855 is a U.S.–tribal agreement that ceded vast Indigenous lands in the Pacific Northwest while establishing the Flathead Reservation and defining rights for the Confederated Salish and Kootenai Tribes.
• B. Treaty of 1854
  The Treaty of 1854 was a U.S. government agreement that ceded most of the Omaha people's ancestral lands in present-day Nebraska in exchange for a reservation and other promised provisions.
• C. Harris Treaty of 1858
  The Harris Treaty of 1858 was a landmark U.S.–Japan agreement that opened Japanese ports to American trade, granted extraterritorial rights to U.S. citizens, and marked a key step in ending Japan’s isolationist policies.
• D. Nvarsak Treaty
  The Nvarsak Treaty was a 5th-century agreement between the Sasanian Empire and Armenian nobles that granted religious freedom to Christian Armenians and curtailed Zoroastrian persecution.
• E. Sugowlee Treaty
  The Sugowlee Treaty is a historic 1815–1816 agreement between the British East India Company and the Kingdom of Nepal that ended the Anglo-Nepalese War and redefined Nepal’s territorial boundaries.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.