Two older men are standing by a brick wall having a conversation.
Two men are playing checkers in the park
Two men cannot be standing by a brick wall while also playing checkers in the park unless it is specified that the brick wall is in the park.
exists e1 e2 s1 x1 x2 x3 x4.(for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_have(e2) & n_conversation(x4) & by(e1,x2) & n_wall(x2) & of(x2,x3) & n_brick(x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_park(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_checkers(x2) & n_man(x1) & card_eq_2(x1))