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: Nevertheless, increased longevity and falling birth rates are major factors making many state pension systems across Europe unsustainable in their present form. Some member states have already introduced major reforms (e.g. Germany, France and Austria) others have continued to adapt their existing systems. Sentence 2: National pension systems currently adopted in Europe are in difficulties.

1