(c3) (h) (h) (h') (h) (h_i) (hvghih_') (,) (h) (hg~) (f) (g_h) (g) (e.) (e.) (;) (f) (ed) (e) (f) (h_i) (hvghih.) (,) (f_') (h) (g') (e) (de) (e.) (::) (h) (h) (f) (h) (i) (h.) (::)