A man in gray shirt sitting near a woman.
A couple is walking down a city street.
The man can't be sitting if he's walking down a street.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & near(e1,x4) & n_woman(x4) & Actor(e1,x3) & v_sit(e1) & (x1 = x3) & in(x1,x2) & n_shirt(x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_street(x2) & of(x2,x3) & n_city(x3) & n_couple(x1))