Four people all wearing pants and shirts lie on a rocky beach.
Four people lie on rocky beach to sleep.
Four people do not have to sleep to lie on a rocky beach.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_beach(x6) & a_rocky(s2) & Theme(s2,x6) & Actor(e2,x1) & v_lie(e2) & a_all(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x5,x3) & n_shirt(x5) & subset_of(x4,x3) & n_pants(x4) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists e1 p1 s1 x1 x2 x3.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_sleep(e2)) & on(e1,x3) & n_beach(x3) & a_rocky(s1) & Theme(s1,x3) & Actor(e1,x2) & v_lie(e1) & n_people(x2) & card_eq_4(x2) & n_people(x1) & card_eq_4(x1))