a little kid in a blue coat watching ducks swim.
A child in a red onesie.
The child was said to have been wearing a blue coat, not a red onesie and a child refers to someone younger than what you'd consider a "little kid."
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & n_swim(x4) & of(x4,x5) & n_duck(x5) & (x2 = x3) & n_coat(x2) & a_blue(s2) & Theme(s2,x2) & n_kid(x1) & a_little(s1) & Theme(s1,x1))
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_onesie(x2) & a_red(s1) & Theme(s1,x2) & n_child(x1))