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: If toxic waste containg cyanide is not disposed of properly, it may drain into ponds, streams, sewers, and reservoirs. Sentence 2: Leaks into environment are caused by bad disposal of toxic waste containing cyanide.

1