a man on a sidewalk talking on his mobile phone
A man is on the phone.
Talking on his mobile phone means the man is on the phone.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & on(e1,x4) & n_phone(x4) & a_mobile(s1) & Theme(s1,x4) & of(x4,x1) & n_male(x1) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_sidewalk(x2) & n_man(x1))
exists p1 x1 x2.(n_phone(x2) & on(x1,x2) & n_man(x1))