rlr rls rlt rna rnn rno rnp rnr rns rnt roa roe rof rok rol ron roo rop ror ros rot rpa rpe rpf rpk rpl rpn rpo rpp rpr rps rpt rra rrf rrk rrl rrn rrp rrr rrs rrt rsa rse rsf rsk rsl rsn rso rsp rsr rss rst rta rte rtf rtk rtl rtn rto rtp rtr rts rtt saa sae saf sak sal san sao sap sar sas sat se- sea see sef sek sel sen seo sep ser ses set sfa sfe sff sfk sfl sfn sfo sfp sfr sfs sft sk- ska ske skf skk skl sko skp skr sks skt sla sle slf slk sll sln slo slp slr sls slt sna sne snf snk snl snn sno snp snr sns snt soa soe sof sok sol son soo sop sor sos sot spa spe spf spk spl spn spo spp spr sps spt sr- sra sre srf srk srl srn sro srp srr srs srt ss- ssa sse ssf ssk ssl ssn sso ssp ssr sss sst sta ste stf stk stl stn sto stp str sts stt taa tae taf tak tal tan tao tap tar tas tat te- tea tee tef tek tel ten teo tep ter tes tet tfa tfe tff tfk tfl tfn tfo tfp tfr tfs tft tka tke tkk tkl tko tkp tkr tks tkt tla tle tlf tlk tll tln tlo tlp tlr tls tlt tna tne tnf tnk tnl tnn tno tnp tnr tns tnt to- toa toe tof tok tol ton too top tor tos tot tpa tpe tpf tpk tpl tpn tpo tpp tpr tps tpt tra tre trf trk trl trn tro trp trr trs trt tsa tse tsf tsk tsl tsn tso tsp tsr tss tst tta tte ttf ttk ttl ttn tto ttp ttr tts ttt