A man is jumping on a green bicycle over a sign that says' free dinner'.
The is riding a black bicycle.
The bike is either green or black, not both.
exists e1 p1 s1 x1 x2 x3.(over(e1,x3) & Topic(x3,p1) & exists e2 s2 s3 x4 x5.(Actor(e2,x4) & v_say(e2) & n_'(x4) & of(x4,x5) & n_dinner(x5) & a_free(s3) & Theme(s3,x4) & a_'(s2) & Theme(s2,x4)) & n_sign(x3) & on(e1,x2) & n_bicycle(x2) & a_green(s1) & Theme(s1,x2) & Actor(e1,x1) & v_jump(e1) & n_man(x1))
(x)