(c4) (d) (d_c) (f) (g) (f_h) (h.) (,) (f') (g) (h) (g') (h) (fe) (d.) (;) (g) (g') (h) (g) (f') (g) (f'_) (,) (f) (e') (f) (g) (fe) (d.) (d.) (::) (h) (h) (g) (f) (gh) (gf..) (::)