A man leans against a table.
A person is leaning on a table talking to a friend.
Not all men are talking to a friend.
exists e1 x1 x2.(against(e1,x2) & n_table(x2) & Actor(e1,x1) & v_lean(e1) & n_man(x1))
exists e1 e2 x1 x2 x3.(for(e1,e2) & to(e2,x3) & n_friend(x3) & Actor(e2,x1) & v_talk(e2) & on(e1,x2) & n_table(x2) & Actor(e1,x1) & v_lean(e1) & n_person(x1))