A person is riding their dirt bike jumping high in the air along a trail.
The bicyclist is racing in a marathon.
person riding their bike jumping high cannot be a bicyclist racing in a marathon at the same time
exists e1 e2 p1 x1 x2 x3 x4 x5.(n_air(x4) & for(e1,e2) & in(e2,x4) & along(x4,x5) & n_trail(x5) & exists s1.(Theme(s1,x1) & a_high(s1)) & Topic(e2,p1) & Actor(e2,x1) & v_jump(e2) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & of(x2,x3) & n_dirt(x3) & of(x2,x1) & n_thing(x1) & n_person(x1))
exists e1 x1 x2.(n_bicyclist(x1) & in(e1,x2) & n_marathon(x2) & Actor(e1,x1) & v_race(e1))