Construction workers examining a problem.
Construction workers examining a problem about the blue plan.
Not all problems are about the blue plan.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_examine(e1) & n_problem(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 s1 x1 x2 x3 x4.(n_plan(x4) & a_blue(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_examine(e1) & about(x3,x4) & n_problem(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))