Man working on the railroad.
A man is working outside.
railroad is outside.
exists e1 x1 x2 x3.(n_railroad(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1.(a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_man(x1))