A man in a black shirt talks on his cellphone.
A man in black is sitting and talking on the phone.
That a man in a black shirt talks on his cellphone is not necessarily sitting.
exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & on(x2,x4) & n_cellphone(x4) & of(x4,x1) & n_male(x1) & n_talk(x2) & of(x2,x3) & n_shirt(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4 x5.(n_phone(x5) & on(e2,x5) & Actor(e2,x3) & v_talk(e2) & in(x3,x4) & n_black(x4) & n_man(x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_black(x2) & n_man(x1))