Little kids are playing outside with a water hose and are sliding down a water slide.
Kids are outside
Kids outside as this is the same thing as little kids (kids can be little only) and playing outside means they are outside.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(a_down(s3) & Manner(e2,s3) & Theme(e2,x5) & Actor(e2,x4) & v_slide(e2) & n_slide(x5) & of(x5,x6) & n_water(x6) & n_kid(x4) & a_little(s2) & Theme(s2,x4) & with(e1,x2) & n_hose(x2) & of(x2,x3) & n_water(x3) & r_outside(e1) & Actor(e1,x1) & v_play(e1) & n_kid(x1) & a_little(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_kid(x1))