A boy with a red hat is sitting and selling things on the street.
The boy is wearing a blue hat and sitting inside.
The hat cannot be red and blue simultaneously. He cannot be selling things on the street and sitting inside simultaneously.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(n_street(x6) & Theme(e2,x5) & Actor(e2,x3) & v_sell(e2) & on(x5,x6) & n_thing(x5) & with(x3,x4) & n_hat(x4) & a_red(s2) & Theme(s2,x4) & n_boy(x3) & Actor(e1,x1) & v_sit(e1) & with(x1,x2) & n_hat(x2) & a_red(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 e2 s1 s2 x1 x2.(n_boy(x1) & a_inside(s2) & Manner(e2,s2) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_hat(x2) & a_blue(s1) & Theme(s1,x2))