People cooking at a campsite.
friends are out camping
Friends are people, people can be friends.
exists e1 x1 x2 x3.(a_topic(x1) & at(e1,x3) & n_campsite(x3) & Actor(e1,x2) & v_cook(e1) & (x1 = x2) & n_people(x1))
exists e1 s1 x1.(a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_camp(e1) & n_friend(x1))