premise: A man smiles while he shaves the head of another man.
hypothesis: A man is crying at a co-worker's funeral.
explanation_1: A man can't be smiling and crying at the same time.
explanation_2: The mans would not be smiling while shaving someone's head while crying at a funeral.
explanation_3: A man can either smiles or be crying and one does not shaves a head on a funeral.
premise_logic: exists e1 p1 x1 x2.(n_head(x2) & exists e2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_shave(e2) & of(x2,x3) & n_man(x3) & -(x3 = x1)) & n_man(x1) & n_man(x1) & n_male(x1) & while(e1,p1) & Actor(e1,x1) & v_smile(e1))
hypothesis_logic: exists e1 x1 x2 x3.(at(e1,x3) & n_funeral(x3) & of(x3,x2) & n_co-worker(x2) & Actor(e1,x1) & v_cry(e1) & n_man(x1))