pnh pni pnk pnl pnn pno pnp pnr pns poc poe poh poi pok pol pon poo pop por pos ppc ppe pph ppi ppk ppl ppn ppo ppp ppr pps prc pre prh pri prk prl prn pro prp prr prs ps- psc pse psh psi psk psl psn pso psp psr pss rcc rce rch rci rcl rcn rco rcp rcr rcs re- rec ree reh rei rek rel ren reo rep rer res rh- rhc rhe rhh rhi rhl rhn rho rhp rhr rhs ric rie rih rii rik ril rin rio rip rir ris rkc rke rkk rko rkp rks rlc rle rlh rli rll rln rlo rlp rlr rls rnc rnh rni rnn rno rnp rnr rns roc roe roh roi rok rol ron roo rop ror ros rpc rpe rph rpi rpk rpl rpn rpo rpp rpr rps rrc rrh rri rrk rrl rrn rrp rrr rrs rsc rse rsh rsi rsk rsl rsn rso rsp rsr rss scc sce sch sci sck scl scn sco scp scr scs se- sec see seh sei sek sel sen seo sep ser ses sh- shc she shh shi shk shl shn sho shp shr shs sic sie sih sii sik sil sin sio sip sir sis sk- skc ske skh ski skk skl sko skp skr sks slc sle slh sli slk sll sln slo slp slr sls snc sne sni snk snl snn sno snp snr sns soc soe soh soi sok sol son soo sop sor sos spc spe sph spi spk spl spn spo spp spr sps sr- src sre srh sri srk srl srn sro srp srr srs ss- ssc sse ssh ssi ssk ssl ssn sso ssp ssr sss