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: Boundary Waters Treaty of 1909 | Statement: [United States–Canada environmental cooperation, basedOn, Boundary Waters Treaty of 1909]

Target entity: Boundary Waters Treaty of 1909
Context triple: [United States–Canada environmental cooperation, basedOn, Boundary Waters Treaty of 1909]

• A. Boundary Waters Treaty of 1909 chosen
  The Boundary Waters Treaty of 1909 is a foundational agreement between the United States and Canada that established principles and mechanisms for preventing and resolving disputes over shared boundary waters.
• B. Rush–Bagot Agreement
  The Rush–Bagot Agreement was an 1817 accord between the United States and Great Britain that largely demilitarized the Great Lakes and marked a significant step toward peaceful relations and disarmament along the U.S.-Canadian border.
• C. Oregon Treaty of 1846
  The Oregon Treaty of 1846 was an agreement between the United States and Great Britain that peacefully settled their competing claims in the Pacific Northwest by establishing the 49th parallel as the boundary west of the Rocky Mountains.
• D. Webster–Ashburton Treaty
  The Webster–Ashburton Treaty was an 1842 agreement between the United States and Great Britain that settled long-standing border disputes in the Northeast and improved Anglo-American relations.
• E. Columbia River Treaty
  The Columbia River Treaty is a landmark 1964 agreement between the United States and Canada that coordinates hydropower generation and flood control in the Columbia River Basin.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.