Men and women in bathing suits are standing at poolside while another swimmer is in the water.
There are many  people in or near the pool
Poolside refers to pool.
exists e1 p1 x1 x2 x3 x4 x5 x6 x7 x9.(n_water(x9) & n_swimmer(x7) & exists p2 x8.(in(x8,x9) & n_swimmer(x8) & -(x8 = x7)) & while(e1,p1) & at(e1,x6) & n_poolside(x6) & Actor(e1,x1) & v_stand(e1) & subset_of(x3,x1) & in(x3,x4) & n_suit(x4) & of(x4,x5) & n_bathing(x5) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists x2.(n_pool(x2) & (exists p1 x1.(in(p1,x2) & exists x3.((x1 = x3) & n_people(x3) & n_quantity(x3))) | exists p2 x4.(near(p2,x2) & exists x5.((x4 = x5) & n_people(x5) & n_quantity(x5)))))