A man with long hair is sitting on the grass.
A man standing indoors.
Grass is usually outside, not indoors.
exists e1 s1 x1 x2 x3.(n_grass(x3) & on(e1,x3) & Actor(e1,x1) & v_sit(e1) & with(x1,x2) & n_hair(x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(a_topic(x1) & n_indoor(x1) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_man(x2))