A man barbecues chicken on a grill.
A man cooking outside.
Barbecuing is a way of cooking and it is done outside.
exists e1 x1 x2 x3.(on(e1,x3) & n_grill(x3) & Theme(e1,x2) & Actor(e1,x1) & v_barbecue(e1) & n_chicken(x2) & n_man(x1))
exists s1 x1 x2 x3.(a_topic(x1) & Theme(s1,x3) & a_outside(s1) & (x1 = x3) & n_cooking(x1) & of(x1,x2) & n_man(x2))