(c3) (ig/ij) (i_j) (i'_) (,) (i) (i') (g) (hi) (g) (e) (e) (e.) (;) (e) (g) (g') (g) (g') (h) (f') (h) (g'_) (,) (f) (e') (f) (f'_) (h) (g) (e.) (e.) (::) (i) (i) (j) (i) (h) (gh..) (::)