A man is vacuuming the grass on his lawn.
The person is cleaning up for house guests.
The man vacuuming the grass on his lawn does not imply he is cleaning up for his house guests.
exists e1 x1 x2 x3.(n_lawn(x3) & of(x3,x2) & n_male(x2) & n_grass(x2) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_vacuum(e1) & n_man(x1))
exists e1 s1 x1 x2 x3.(n_person(x1) & a_up(s1) & Manner(e1,s1) & for(e1,x2) & n_guest(x2) & of(x2,x3) & n_house(x3) & Actor(e1,x1) & v_clean(e1))