(c4) (g_i) (i>) (h_j) (ii) (g_) (h) (hih) (g.) (;) (i') (j) (i) (hg~) (h) (hf~) (,) (f) (h_i) (g) (gf) (e.) (e.) (::) (i) (i) (j) (h) (j) (i.) (::)