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: Sabena was the former national airline of Belgium, mainly operating from Brussels National Airport, now replaced by SN Brussels Airlines. Sentence 2: Sabena is a national airline.

1