(f3) (h) (h_g) (e) (gh) (f'_) (,) (f) (f') (g) (e) (f) (h_f) (g) (f) (e.) (;) (fge) (ec) (ef) (h') (g) (e) (g) (f.) (::) (h) (h) (h) (g) (e) (f.) (::)