A man in black is on a blue trimmed bicycle in front of a playground.
The man is walking.
One cannot be on a bicycle while walking.
exists p1 x1 x2.(exists e1 s1 x3 x4 x5.(on(x1,x3) & in(x3,x4) & of(x4,x5) & n_playground(x5) & n_front(x4) & n_bicycle(x3) & Theme(e1,x3) & v_trim(e1) & a_blue(s1) & Theme(s1,x3)) & in(x1,x2) & n_black(x2) & n_man(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_walk(e1))