-th hhh hhn hho hhp hht hnh hnn hno hnt hoh hon hoo hop hot hph hpn hpo hpp hpt hth htn hto htp htt nhh nhn nhp nht nnh nnn nno nnp nnt no- noh non noo nop not nph npn npo npp npt nth ntn nto ntp ntt ohh ohn oho ohp oht on- onh onn ono onp ont oo- ooh oon ooo oop oot op- oph opn opo opp opt ot- oth otn oto otp ott p-p phn pho php pht pn- pnh pnn pno pnp pnt poh pon poo pop pot pph ppn ppo ppp ppt pt- pth ptn pto ptp ptt th- thh thn tho thp tht tnh tnn tno tnp tnt to- toh ton too top tot tph tpn tpo tpp tpt tth ttn tto ttp ttt