A dog is running on the lawn.
the dog is happy
Just because a dog is running on the lawn doesn't mean the dog is happy.
exists e1 x1 x2.(n_lawn(x2) & on(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists s1 x1.(n_dog(x1) & Theme(s1,x1) & a_happy(s1))