rho rhp rhr rhs rht rkc rke rkf rkk rko rkp rks rkt roa roc roe rof roh rok roo rop ror ros rot rpa rpc rpe rpf rph rpk rpo rpp rpr rps rpt rra rrc rrf rrh rrk rrp rrr rrs rrt rsa rsc rse rsf rsh rsk rso rsp rsr rss rst rta rtc rte rtf rtk rto rtp rtr rts rtt saa sac sae saf sah sak sao sap sar sas sat sca scc sce scf sch sck sco scp scr scs sct se- sea sec see sef seh sek seo sep ser ses set sfa sfc sfe sff sfh sfk sfo sfp sfr sfs sft sh- sha shc she shf shh shk sho shp shr shs sht sk- ska skc ske skf skh skk sko skp skr sks skt soa soc soe sof soh sok soo sop sor sos sot spa spc spe spf sph spk spo spp spr sps spt sr- sra src sre srf srh srk sro srp srr srs srt ss- ssa ssc sse ssf ssh ssk sso ssp ssr sss sst sta stc ste stf sth stk sto stp str sts stt taa tac tae taf tah tak tao tap tar tas tat tca tcc tce tcf tch tck tco tcp tcr tcs tct te- tea tec tee tef teh tek teo tep ter tes tet tfa tfc tfe tff tfh tfk tfo tfp tfr tfs tft th- tha thc the thf thh thk tho thp thr ths tht tka tkc tke tkk tko tkp tkr tks tkt to- toa toc toe tof toh tok too top tor tos tot tpa tpc tpe tpf tph tpk tpo tpp tpr tps tpt tra trc tre trf trh trk tro trp trr trs trt tsa tsc tse tsf tsh tsk tso tsp tsr tss tst tta ttc tte ttf tth ttk tto ttp ttr tts ttt