The yellow dog is trying to catch a red Frisbee.
The dog was playing catch with a frisbee.
A yellow dog can still play catch with a Frisbee, even if the frisbee is red.
exists e1 p1 s1 x1.(n_dog(x1) & a_yellow(s1) & Theme(s1,x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_catch(e2) & n_frisbee(x2) & a_red(s2) & Theme(s2,x2)))
exists e1 x1 x2 x3.(n_dog(x1) & with(e1,x3) & n_frisbee(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_catch(x2))