A young boy is swimming in an underground pool right next to the 3.5 ft. sign.
A young child swims for the first time.
Just because the boy is young, it is not necessarily his first time swimming.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(n_sign(x4) & of(x4,x5) & n_ft.(x5) & card_eq_3.5(x4) & in(e1,x2) & r_right(s3) & to(s3,x4) & Theme(s3,x3) & a_next(s3) & (x2 = x3) & n_pool(x2) & a_underground(s2) & Theme(s2,x2) & Actor(e1,x1) & v_swim(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists s1 s2 x1 x2 x3.(n_time(x3) & a_first(s2) & Theme(s2,x3) & a_topic(x1) & for(x1,x3) & n_swim(x1) & of(x1,x2) & n_child(x2) & a_young(s1) & Theme(s1,x1))