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: Cosmonaut Sergei Avdeyev, currently on board the Mir space station, has become the person with the longest total stay in space. He has clocked up 681 days. Sentence 2: Russians hold record for longest stay in space.

1