A man working at the side of the road with a grill.
A man working alone.
A man working at the side of the road must be working alone.
exists e1 x1 x2 x3 x4 x5.(n_road(x4) & n_side(x3) & a_topic(x1) & with(e1,x5) & n_grill(x5) & at(e1,x3) & of(x3,x4) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2.(a_topic(x1) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))