Input: Can we say "Harry knew much less than Mark did." if "Of one thing Mark was sure. Harry knew much less than he did."?

Output: yes


Input: Can we say "John's turn was over." if "Bill passed the gameboy to John because his turn was over."?

Output: no


Input: Can we say "Amy's parents are fifteen." if "Sam and Amy are passionately in love, but Amy's parents are unhappy about it, because they are fifteen."?

Output:
no