hhh hhn hho hhp hhr hnh hnn hno hoh hon hoo hop hor hph hpn hpo hpp hpr hr- hrh hrn hro hrp hrr nhh nhn nhp nhr nnh nnn nno nnp no- noh non noo nop nor nph npn npo npp npr nrn nro nrp nrr ohh ohn oho ohp ohr on- onh onn ono onp onr oo- ooh oon ooo oop oor op- oph opn opo opp opr or- orh orn oro orp orr p-p phn pho php phr pn- pnh pnn pno pnp pnr poh pon poo pop por pph ppn ppo ppp ppr prh prn pro prp prr rh- rhh rhn rho rhp rhr rnh rnn rno rnp rnr roh ron roo rop ror rph rpn rpo rpp rpr rrh rrn rrp rrr