Four people enjoying the qualities of nature.
Four people hiking through the wilderness.
Just because the people enjoy the nature does not imply that they are hiking.
exists e1 x1 x2 x3 x4.(n_quality(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & of(x3,x4) & n_nature(x4) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(n_wilderness(x3) & a_topic(x1) & through(e1,x3) & Actor(e1,x2) & v_hike(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))