A man talks on a cellphone while working.
A man is walking home after work.
You can't walk home after work if you're still working.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & Theme(s1,x4) & a_work(s1) & (x3 = x4) & n_cellphone(x3) & n_talk(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3.(after(e1,x3) & n_work(x3) & Time(e1,x2) & n_home(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))