hhh hhn hho hhp hhs hnh hnn hno hns hoh hon hoo hop hos hph hpn hpo hpp hps hsh hsn hsp hss nhh nhn nhp nhs nnh nnn nno nnp nns no- noh non noo nop nos nph npn npo npp nps nsh nsn nso nsp nss ohh ohn oho ohp ohs on- onh onn ono onp ons oo- ooh oon ooo oop oos op- oph opn opo opp ops os- osh osn oso osp oss p-p phn pho php phs pn- pnh pnn pno pnp pns poh pon poo pop pos pph ppn ppo ppp pps ps- psh psn pso psp pss sh- shh shn sho shp shs snn sno snp sns soh son soo sop sos sph spn spo spp sps ss- ssh ssn sso ssp sss