One person is riding a motorbike in a riding suit.
The rider is performing tricks.
person is riding a motorbike in a riding suit doesn't implies he is performing tricks
exists e1 x1 x2 x3 x4.(in(e1,x3) & n_suit(x3) & of(x3,x4) & n_riding(x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_motorbike(x2) & n_person(x1) & card_eq_1(x1))
exists e1 x1 x2.(n_rider(x1) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2))