A dog takes a nap in the middle of a busy alley.
A stray dog naps in the middle of a alley full of pedestrians.
Dogs can nap anywhere on the alley and the alley would not be full of pedestrians always.
exists e1 s1 x1 x2 x3 x4.(n_middle(x3) & in(e1,x3) & of(x3,x4) & n_alley(x4) & a_busy(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_nap(x2) & n_dog(x1))
exists s1 s2 x1 x2 x3 x4 x5 x6.(n_middle(x3) & a_topic(x1) & in(x1,x3) & of(x3,x4) & of(s2,x6) & n_pedestrian(x6) & Theme(s2,x5) & a_full(s2) & (x4 = x5) & n_alley(x4) & n_nap(x1) & of(x1,x2) & n_dog(x2) & a_stray(s1) & Theme(s1,x1))