pir pis pit piu piv pn- pnc pnd pne pni pnn pno pnp pnr pns pnt pnu pnv pny poc pod poe poi pon poo pop por pos pot pou pov poy ppc ppd ppe ppi ppn ppo ppp ppr pps ppt ppu ppv prc prd pre pri prn pro prp prr prs prt pru prv pry ps- psc psd pse psi psn pso psp psr pss pst psu psv psy pt- ptc ptd pte pti ptn pto ptp ptr pts ptt ptu ptv pty puc pud pue pui pun pup pur pus put puu puy pvc pvd pve pvi pvn pvo pvp pvr pvs pvt pvu pvv py- pyc pyd pye pyn pyo pyr pys pyt pyu rcc rcd rce rci rcn rco rcp rcr rcs rct rcu rcv rdc rdd rde rdi rdn rdo rdp rdr rds rdt rdu rdv rdy re- rec red ree rei ren reo rep rer res ret reu rev rey ric rid rie rii rin rio rip rir ris rit riv riy rnc rnd rni rnn rno rnp rnr rns rnt rnu rnv rny roc rod roe roi ron roo rop ror ros rot rou rov roy rpc rpd rpe rpi rpn rpo rpp rpr rps rpt rpu rpv rrc rrd rri rrn rrp rrr rrs rrt rru rsc rsd rse rsi rsn rso rsp rsr rss rst rsu rsv rtc rtd rte rti rtn rto rtp rtr rts rtt rtu rtv rty ruc rud rue rui run ruo rup rur rus rut ruu ruv ruy rvc rvd rve rvi rvn rvo rvp rvr rvs rvt rvu rvv rvy ry- ryc ryd rye ryn ryo ryr rys ryu ryy scc scd sce sci scn sco scp scr scs sct scu scv sdc sdd sde sdi sdn sdo sdp sdr sds sdt sdu sdv sdy se- sec sed see sei sen seo sep ser ses set seu sev sey sic sid sie sii sin sio sip sir sis sit siu siv snc snd sne sni snn sno snp snr sns snt snu snv sny soc sod soe soi son soo sop sor sos sot sou sov soy spc spd spe spi spn spo spp spr sps spt spu spv spy sr- src srd sre sri srn sro srp srr srs srt srv sry ss- ssc ssd sse ssi ssn sso ssp ssr sss sst ssu ssv stc std ste sti stn sto stp str sts stt stu stv sty suc sud sue sui sun suo sup sur sus sut suu suv suy svc svd sve svi svn svo svp svr svs svt svu svv svy sy- syc syd sye syi syn syp syr sys syt syu tcc tcd tce tci tcn tco tcp tcr tcs tct tcu tcv tdc tdd tde tdi tdn tdo tdp tdr tds tdt tdu tdv tdy te- tec ted tee tei ten teo tep ter tes tet teu tev tey tic tid tie tii tin tio tip tir tis tit tiu tiv tiy tnc tnd tne tni tnn tno tnp tnr tns tnt to- toc tod toe toi ton too top tor tos tot tou tov toy tpc tpd tpe tpi tpn tpo tpp tpr tps tpt tpu tpv trc trd tre tri trn tro trp trr trs trt tru trv try tsc tsd tse tsi tsn tso tsp tsr tss tst tsu tsv tsy ttc ttd tte tti ttn tto ttp ttr tts ttt ttu ttv tty tuc tud tue tui tun tuo tup tur tus tut tuu tuv tuy tvc tvd tve tvi tvn tvo tvp tvr tvs tvt tvu tvy tyc tyd tye tyn tyo typ tyr tys tyt ucc ucd uce uci ucn uco ucp ucr ucs uct ucu ucv udc udd ude udi udn udo udp udr uds udt udu udv uec ued uee uei uen uep uer ues uet uey uic uid uie uii uin uio uip uir uis uit uiu un- unc und une uni unn uno unp unr uns unt unu unv uny uoc uod uoe uon uoo uop uor uos uot up- upc upd upe upi upn upo upp upr ups upt upu upv ur- urc urd ure uri urn uro urp urr urs urt uru ury usc usd use usi usn uso usp usr uss ust usu usv utc utd ute uti utn uto utp utr uts utt utu utv uty uuc uue uun uur uus uut uuu uvc uve uvo uvs uvu uvv uyc uyi uyo uys uyu v-e vcc vcd vce vci vcn vco vcp vcr vcs vct vcu vcy vdc vdd vde vdi vdo vdp vdr vds vdt vdu vdv vec ved vee vei ven veo vep ver ves vet veu vey vi- vic vid vie vii vin vio vip vir vis vit viu viv viy vn- vnd vni vno vnp vnr vns vnu vnv voc vod voe voi von voo vop vor vos vot vou vov voy vpc vpd vpe vpi vpn vpo vpp vpr vps vpt vpu vrc vrd vre vri vrn vrp vrr vrs vrt vru vry vsc vsd vse vsi vsn vso vsp vsr vss vst vsu vsv vtc vte vti vto vtr vts vtt vtu vtv vty vue vup vur vus vut vuv vvc vvi vvo vvr vvs vvt vvv vyd vye vyn vyp vyt ycc ycd yce yci yco ycp ycs ycu ycv ycy yde ydn ydo yds ydt ydy yec yed yee yei yen yeo yep yer yes yet yev yey yid yie yii yin yio yip yir yis yit ynd yne ynn ynp yns ynu yny yoc yod yoe yoi yon yoo yop yor yos yot you yoy ypd ypo yps ypu yrc yre yrn yro yrp yrs yrt yru ysc yse ysi yso ysp ysr yss yst ysu ysy ytc ytd yte ytn yto ytp ytr yts ytt ytu ytv yud yue yui yun yuo yup yur yus yut yuu yuv yuy yve yvi yvo yvr yvy yyc yye yys yyt yyu yyy