a beach with blue and red boats, with people on shore
People are lounging on the beach, while boats sail by.
Just because people are on a shore doesn't mean they are lounging while boats sail by.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & with(x2,x3) & on(x3,x4) & n_shore(x4) & n_people(x3) & n_boat(x2) & a_red(s2) & Theme(s2,x2) & a_blue(s1) & Theme(s1,x2) & n_beach(x1))
exists e1 e2 s1 x1 x2 x3 x4.(n_beach(x2) & while(e1,x3) & a_by(s1) & Manner(e2,s1) & Theme(e2,x4) & v_sail(e2) & (x3 = x4) & n_boat(x3) & on(e1,x2) & Actor(e1,x1) & v_lounge(e1) & n_people(x1))