Input: Can we say "The crutches should be unnecessary." if "Sam broke both his ankles and he's walking with crutches. But a month or so from now they should be unnecessary."?

Output: yes


Input: Can we say "The con artist would have lost a lot of money." if "If the con artist has succeeded in fooling Sam, he would have lost a lot of money."?

Output: no


Input: Can we say "Pete is very successful." if "Pete envies Martin although he is very successful."?

Output:
yes