A man in a green jacket is looking after a black horse.
A man wearing blue takes his dogs to the dog park.
Looking after a horse and walking dogs are different activities, they cannot be done at the same time.
exists e1 s1 s2 x1 x2 x3.(after(e1,x3) & n_horse(x3) & a_black(s2) & Theme(s2,x3) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_jacket(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4 x5.(to(e1,x5) & n_park(x5) & of(x5,x4) & n_dog(x4) & n_dog(x4) & Theme(e1,x4) & Actor(e1,x1) & v_take(e1) & of(x4,x1) & n_male(x1) & Theme(s1,x3) & a_blue(s1) & (x1 = x3) & n_wear(x1) & of(x1,x2) & n_man(x2))