A boy is trying to catch a Frisbee in a field.
A boy is playing in a field.
A boys is trying to catch a frisbee is nothing but he is playing with it
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2 x3.(in(e2,x3) & n_field(x3) & Theme(e2,x2) & Actor(e2,x1) & v_catch(e2) & n_frisbee(x2)) & n_boy(x1))
exists e1 x1 x2.(in(e1,x2) & n_field(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))