A dog has its mouth wide open trying to bite something.
The dog is speaking.
A dog that is speaking cannot at the same time be trying to bite something.
exists e1 e2 p1 s1 x1 x2 x3.(for(e1,e2) & Topic(e2,p1) & Actor(e2,x1) & v_try(e2) & exists e3 x4.(Theme(e3,x4) & Actor(e3,x1) & v_bite(e3) & n_thing(x4)) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & r_wide(s1) & Theme(s1,x3) & a_open(s1) & (x2 = x3) & n_mouth(x2) & of(x2,x1) & n_thing(x1) & n_dog(x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_speak(e1))