Definition: In this task, you're given two sentences. Indicate if the first sentence clearly entails the second sentence (i.e., one can conclude the 2nd sentence by reading the 1st one). Indicate your answer with '1' if the first sentence entails the second sentence, otherwise answer with '0'.
Input: Sentence 1: Centre-left voters in Italy have chosen Romano Prodi as the candidate who will challenge Prime Minister Silvio Berlusconi in next year's election. The former European Commission president and Italian PM won 73.5% of votes, according to partial results of primaries. Sentence 2: Romano Prodi wins Italian primaries.

1