Three people in various stages of swimming strokes race along colorful lane markers.
The three people are lounging on the beach.
People can not swimming  in water,  and on land lounging on the beach at the same time.
exists s1 s2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & in(x1,x2) & of(x2,x3) & along(x3,x6) & n_marker(x6) & of(x6,x7) & n_lane(x7) & a_colorful(s2) & Theme(s2,x6) & n_race(x3) & of(x3,x5) & n_stroke(x5) & of(x3,x4) & n_swimming(x4) & n_stage(x2) & a_various(s1) & Theme(s1,x2) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2.(n_beach(x2) & n_people(x1) & card_eq_3(x1) & on(e1,x2) & Actor(e1,x1) & v_lounge(e1))