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: Anglo-American Convention of 1818 | Statement: [Oregon Country, establishedBy, Anglo-American Convention of 1818]

Target entity: Anglo-American Convention of 1818
Context triple: [Oregon Country, establishedBy, Anglo-American Convention of 1818]

• A. Convention of 1818 chosen
  The Convention of 1818 was an agreement between the United States and Great Britain that settled parts of the U.S.-Canada boundary and established joint occupation of the Oregon Country.
• B. 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.
• C. Adams–Onís Treaty
  The Adams–Onís Treaty was an 1819 agreement between the United States and Spain that ceded Florida to the U.S. and defined the boundary between U.S. and Spanish territories in North America.
• D. 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.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.