A young child wearing a blue shirt and sandals playing with a red toy while sitting on the floor.
A young kid is playing on the floor.
Kid is another word for child, and they are sitting on the floor playing in both sentences.
exists e1 e2 e3 s1 s2 s3 x1 x2 x3 x4 x5.(n_floor(x5) & while(e2,e3) & on(e3,x5) & Actor(e3,x3) & v_sit(e3) & with(e2,x4) & n_toy(x4) & a_red(s3) & Theme(s3,x4) & Actor(e2,x3) & v_play(e2) & n_sandal(x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_blue(s2) & Theme(s2,x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_floor(x2) & on(e1,x2) & Actor(e1,x1) & v_play(e1) & n_kid(x1) & a_young(s1) & Theme(s1,x1))