People standing, sitting, and on a bike on a dock located in the middle of a body of water.
People are watching the kids swim in the water.
People on a dock in a body of water doesn't necessarily mean that they are watching kids swim in the water.
exists e1 e2 e3 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_middle(x7) & a_topic(x3) & on(x3,x4) & on(x4,x5) & in(e3,x7) & of(x7,x8) & of(x8,x9) & n_water(x9) & n_body(x8) & Theme(e3,x6) & v_locate(e3) & (x5 = x6) & n_dock(x5) & n_bike(x4) & n_people(x3) & a_topic(x1) & for(e1,e2) & Actor(e2,x2) & v_sit(e2) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1))
exists e2 e1 x1 x2 x3 x4.(n_water(x4) & n_kid(x2) & Theme(e2,x2) & Actor(e2,x1) & v_watch(e2) & in(e1,x4) & Actor(e1,x3) & v_swim(e1) & (x2 = x3) & n_people(x1))