premise: A salt-and-pepper-haired man with beard and glasses wearing black sits on the grass.
hypothesis: A man waiting for someone while sitting on the grass.
explanation_1: Just because he is sitting around doesn't mean he is waiting for someone.
explanation_2: Sitting on the grass does not mean he is waiting for someone.
explanation_3: Someone sitting on the grass is not necessarily waiting for someone.
premise_logic: exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_grass(x7) & on(e2,x7) & Actor(e2,x1) & v_sit(e2) & Theme(s2,x6) & a_black(s2) & (x1 = x6) & with(x1,x2) & subset_of(x4,x2) & Actor(e1,x5) & v_wear(e1) & (x4 = x5) & n_glass(x4) & subset_of(x3,x2) & n_beard(x3) & n_man(x1) & a_salt-and-pepper-haired(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 e2 x1 x2 x3 x4.(n_grass(x4) & a_topic(x1) & while(e1,e2) & on(e2,x4) & Actor(e2,x2) & v_sit(e2) & for(e1,x3) & n_person(x3) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_man(x1))