A bicyclist is performing a trick on a tall tree.
A cyclist is riding.
A bicyclist can also be called a cyclist.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_tree(x3) & a_tall(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2) & n_bicyclist(x1))
exists e1 x1.(Actor(e1,x1) & v_ride(e1) & n_cyclist(x1))