title: Aníbal Cavaco Silva
context: Cavaco Silva was reelected President of Portugal on 23 January 2011 with 52,92% of the vote, and he took office for his second five-year term on 9 March 2011. He is regarded as the most unpopular President since the abolition of Estado Novo in 1974.
question: By what margin did António de Oliveira Salazar win the election for Prime Minister?
answers: 52,92%