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: Sand River Convention | Statement: [Sand River, hasEvent, Sand River Convention]

Target entity: Sand River Convention
Context triple: [Sand River, hasEvent, Sand River Convention]

• A. Sand River Convention chosen
  The Sand River Convention was an 1852 agreement by which Britain recognized the independence of the Boer settlers in the Transvaal region of southern Africa.
• B. Horse Creek Treaty
  The Horse Creek Treaty was an 1851 agreement between the United States and several Plains Indian nations that aimed to establish territorial boundaries and ensure safe passage for settlers moving west.
• C. Treaty of Buffalo Creek
  The Treaty of Buffalo Creek was an 1838 agreement between the United States and several Iroquois nations that sought to remove them from their remaining lands in New York to reservations in the West, leading to major land losses and long-term legal disputes.
• D. 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.
• E. Qu’Appelle Treaty
  The Qu’Appelle Treaty is a historic agreement between the Canadian government and several First Nations in the Prairie region, establishing terms for land cession, reserves, and ongoing treaty rights.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.