You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
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Question: Category: THE 19th CENTURY 
Clue: In 1825 patriots crossed the Rio de la Plata from Argentina to fight for this country's freedom from Brazil

Answer: uruguay


Question: Category: OIL PAINTING 
Clue: This painting surface may be linen or cotton & is placed on a frame called a stretcher

Answer: canvas


Question: Category: "NEW" GEOGRAPHY 
Clue: This shipbuilding city is found on England's Tyne river

Answer:
newcastle