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: [Transvaal, treaty, Sand River Convention]

Target entity: Sand River Convention
Context triple: [Transvaal, treaty, Sand River Convention]

• A. Treaty of Fort McIntosh
  The Treaty of Fort McIntosh was a 1785 agreement between the United States and several Native American nations that ceded large tracts of land in the Ohio Country to U.S. control, helping set the stage for further conflict in the Northwest Indian War.
• B. Treaty of Fort Finney
  The Treaty of Fort Finney was a 1786 agreement in which several Shawnee leaders ceded large tracts of land in the Ohio River Valley to the United States, helping set the stage for escalating conflicts that became the Northwest Indian War.
• C. Treaty of 1837 with the United States
  The Treaty of 1837 with the United States was an agreement in which the Ho-Chunk (Winnebago) Nation ceded large portions of their ancestral lands in the Upper Midwest to the U.S. government, contributing to their forced removal and displacement.
• D. Treaty of Prairie du Chien
  The Treaty of Prairie du Chien was a series of early 19th-century agreements between the United States and several Native American nations in the Upper Midwest that redefined tribal boundaries and ceded large areas of Indigenous land to the U.S. government.
• E. Treaty of Fort Harmar
  The Treaty of Fort Harmar was a 1789 agreement between the United States and several Native American nations of the Northwest Territory that attempted, unsuccessfully, to reaffirm earlier land cessions and ease frontier tensions during the Northwest Indian War.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Sand River Convention
Triple: [Transvaal, treaty, Sand River Convention]

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.

Target entity: Sand River Convention
Target entity description: 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.

• A. Treaty of Fort McIntosh
  The Treaty of Fort McIntosh was a 1785 agreement between the United States and several Native American nations that ceded large tracts of land in the Ohio Country to U.S. control, helping set the stage for further conflict in the Northwest Indian War.
• B. Treaty of Fort Finney
  The Treaty of Fort Finney was a 1786 agreement in which several Shawnee leaders ceded large tracts of land in the Ohio River Valley to the United States, helping set the stage for escalating conflicts that became the Northwest Indian War.
• C. Treaty of 1837 with the United States
  The Treaty of 1837 with the United States was an agreement in which the Ho-Chunk (Winnebago) Nation ceded large portions of their ancestral lands in the Upper Midwest to the U.S. government, contributing to their forced removal and displacement.
• D. Treaty of Prairie du Chien
  The Treaty of Prairie du Chien was a series of early 19th-century agreements between the United States and several Native American nations in the Upper Midwest that redefined tribal boundaries and ceded large areas of Indigenous land to the U.S. government.
• E. Treaty of Fort Harmar
  The Treaty of Fort Harmar was a 1789 agreement between the United States and several Native American nations of the Northwest Territory that attempted, unsuccessfully, to reaffirm earlier land cessions and ease frontier tensions during the Northwest Indian War.
• F. None of above. chosen