A man on a BMX bike jumping up a ramp and doing a trick.
You cannot jump up ramps on a BMX bike.
If you cannot jump up ramps on a BMX bike then there are no man on a BMX bike jumping.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e2,x7) & Actor(e2,x6) & v_do(e2) & n_trick(x7) & (x1 = x6) & a_up(s1) & Manner(e1,s1) & Theme(e1,x5) & Actor(e1,x4) & v_jump(e1) & n_ramp(x5) & (x1 = x4) & on(x1,x2) & n_bike(x2) & (x2 = x3) & ne_org_bmx(x3) & n_man(x1))
exists x1.(n_person(x1) & -exists e1 p1.(exists e2 s1 x2 x3 x4.(a_up(s1) & Manner(e2,s1) & Theme(e2,x2) & Actor(e2,x1) & v_jump(e2) & on(x2,x3) & n_bike(x3) & (x3 = x4) & ne_org_bmx(x4) & n_ramp(x2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1)))