answers.input_text: short
answers.span_text: the city of Oslo , Norway
questions: who donates a christmas tree to trafalgar square
name: Trafalgar Square Christmas tree
contexts: The Trafalgar Square Christmas tree is a Christmas tree donated to the people of Britain by the city of Oslo , Norway each year since 1947 . The tree is prominently displayed in Trafalgar Square from the beginning of December until 6 January .