A man sitting down talking on a cellphone.
A man is sleeping.
a man couldn't be talking on a cell phone while he is sleeping.
exists e2 e1 s1 x1 x2 x3.(a_topic(x1) & for(e1,e2) & on(e2,x3) & n_cellphone(x3) & Actor(e2,x2) & v_talk(e2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_man(x1))