Two older men are having a conversation at a park.
The two men walked in silence.
The men can't be having a conversation while walking in silence.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_park(x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_conversation(x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(n_man(x1) & card_eq_2(x1) & in(e1,x2) & n_silence(x2) & Actor(e1,x1) & v_walk(e1))