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: Treaty of 1855 | Statement: [Umatilla people, treaty, Treaty of 1855]

Target entity: Treaty of 1855
Context triple: [Umatilla people, treaty, Treaty of 1855]

• A. Treaty of 1855
  The Treaty of 1855 was an agreement between the United States and the Nez Perce that established a reservation and recognized certain tribal rights while ceding large areas of the tribe’s traditional lands.
• B. Treaty of Walla Walla (1855) chosen
  The Treaty of Walla Walla (1855) was an agreement between the U.S. government and several Plateau tribes, including the Yakama, Walla Walla, Cayuse, and Umatilla, that ceded vast Indigenous lands in the Pacific Northwest in exchange for reservations and other promised provisions.
• C. Treaty of Point Elliott
  The Treaty of Point Elliott was an 1855 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other guarantees.
• D. Treaty of Medicine Creek
  The Treaty of Medicine Creek was an 1854 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other provisions.
• E. Robinson Superior Treaty
  The Robinson Superior Treaty is an 1850 agreement between the British Crown and Indigenous peoples around Lake Superior that ceded vast territories in what is now Ontario in exchange for reserves and annuities.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.