A man in green jumps serveral motorbikes on his own motorbike.
A man is performing a motorcycle jump.
If someone jumps several motorbikes then can be performing
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & on(x2,x4) & n_motorbike(x4) & a_own(s3) & Theme(s3,x4) & of(x4,x1) & n_male(x1) & n_motorbike(x2) & a_serveral(s2) & Theme(s2,x2) & of(x2,x3) & n_jump(x3) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_jump(x2) & of(x2,x3) & n_motorcycle(x3) & n_man(x1))