People hiking on the mountain by the seaside.
The people are outside
People are walking outside.
exists e1 x1 x2 x3 x4.(n_seaside(x4) & n_mountain(x3) & a_topic(x1) & on(e1,x3) & by(x3,x4) & Actor(e1,x2) & v_hike(e1) & (x1 = x2) & n_people(x1))
exists s1 x1.(n_people(x1) & Theme(s1,x1) & a_outside(s1))