(c4) (g) (hi~) (ij) (i) (,) (i_j!klk) (j) (ih~) (j_h) (ih) (g) (g.) (;) (g) (h!iw!jv_IH) (i) (h') (g) (f') (g) (gf) (e.) (e.) (::) (j) (j) (j) (h) (j) (ih..) (::)