A brown dog treads the water with something in its mouth.
A dog is lying down.
The dog cannot be lying down while it treads the water. The actions are too different.
exists e1 s1 x1 x2 x3 x4.(n_mouth(x4) & of(x4,x2) & n_thing(x2) & n_water(x2) & Theme(e1,x2) & Actor(e1,x1) & v_tread(e1) & with(x2,x3) & in(x3,x4) & n_thing(x3) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 s1 x1.(a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lie(e1) & n_dog(x1))