A dog's head is tilted back, and he appears to be looking at an insect flying by.
The dog is sleeping
a sleeping dog cannot be looking ar a flying insect, it is unconscious
exists e2 e1 p1 p2 x1 x2.(Topic(e2,p2) & Actor(e2,x1) & v_appear(e2) & exists e4 e3 s2 x3 x4.(at(e3,x3) & a_by(s2) & Manner(e4,s2) & Actor(e4,x4) & v_fly(e4) & (x3 = x4) & n_insect(x3) & Actor(e3,x1) & v_look(e3)) & n_male(x1) & exists s1.(Theme(s1,x2) & a_back(s1)) & Recipient(e1,p1) & Topic(e1,x2) & v_tilt(e1) & n_head(x2) & of(x2,x1) & n_dog(x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_sleep(e1))