g-p ggg ggh ggn ggo ggp ghg ghh ghn gho ghp gnn gno gnp gog goh gon goo gop gpg gph gpn gpo gpp hgg hgh hgn hgo hgp hhg hhh hhn hho hhp hng hnh hnn hno hog hoh hon hoo hop hpg hph hpn hpo hpp ngg ngh ngn ngo ngp nhg nhh nhn nhp nng nnh nnn nno nnp no- nog noh non noo nop npg nph npn npo npp ogg ogh ogn ogo ogp ohg ohh ohn oho ohp on- ong onh onn ono onp oo- oog ooh oon ooo oop op- opg oph opn opo opp p-p pgg pgh pgn pgo pgp phg phn pho php pn- png pnh pnn pno pnp pog poh pon poo pop ppg pph ppn ppo ppp