A skateboarder is airborne above his inverted board.
A man rides a bike through the park.
The individual cannot simultaneously ride a skateboard and a bike.
exists s1 s2 x1 x2.(above(s1,x2) & n_board(x2) & a_inverted(s2) & Theme(s2,x2) & of(x2,x1) & n_male(x1) & Theme(s1,x1) & a_airborne(s1) & n_skateboarder(x1))
exists e1 x1 x2 x3.(n_park(x3) & through(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_man(x1))