Four people watch the sunset.
Four people carry groceries inside.
It's hard to watch the sunset, which is outdoors, if you are carrying things indoors at the time.
exists e1 x1 x2.(n_sunset(x2) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_people(x1) & card_eq_4(x1))
exists e1 s1 x1 x2.(a_inside(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_grocery(x2) & n_people(x1) & card_eq_4(x1))