A dog jumps and catches a toy.
 A dog jumps and catches his toy.
Both subjects jumps
exists s1 x1 x2.(a_topic(s1) & all x3.(n_toy(x3) -> exists x4.(subset_of(x4,s1) & for(x4,x3) & n_catch(x4))) & subset_of(x1,s1) & n_jump(x1) & of(x1,x2) & n_dog(x2))
exists s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x3,s1) & Time(x3,x4) & n_catch(x4) & n_toy(x3) & of(x3,x1) & n_male(x1) & subset_of(x1,s1) & n_jump(x1) & of(x1,x2) & n_dog(x2))