res ret ria rib rie rii rik ril rin rio rir ris rit rkb rke rkk rko rks rkt rla rle rli rll rln rlo rlr rls rlt rna rnb rni rnn rno rnr rns rnt roa rob roe roi rok rol ron roo ror ros rot rra rrb rri rrk rrl rrn rrr rrs rrt rsa rsb rse rsi rsk rsl rsn rso rsr rss rst rta rtb rte rti rtk rtl rtn rto rtr rts rtt saa sab sae sai sak sal san sao sar sas sat sba sbb sbe sbi sbk sbl sbn sbo sbr sbs sbt se- sea seb see sei sek sel sen seo ser ses set sia sib sie sii sik sil sin sio sir sis sit sk- ska skb ske ski skk skl sko skr sks skt sla slb sle sli slk sll sln slo slr sls slt sna snb sne sni snk snl snn sno snr sns snt soa sob soe soi sok sol son soo sor sos sot sr- sra srb sre sri srk srl srn sro srr srs srt ss- ssa ssb sse ssi ssk ssl ssn sso ssr sss sst sta stb ste sti stk stl stn sto str sts stt taa tab tae tai tak tal tan tao tar tas tat tba tbb tbe tbi tbk tbl tbn tbo tbr tbs tbt te- tea teb tee tei tek tel ten teo ter tes tet tia tib tie tii tik til tin tio tir tis tit tka tkb tke tkk tkl tko tkr tks tkt tla tle tli tlk tll tln tlo tlr tls tlt tna tnb tne tni tnk tnl tnn tno tnr tns tnt to- toa tob toe toi tok tol ton too tor tos tot tra trb tre tri trk trl trn tro trr trs trt tsa tsb tse tsi tsk tsl tsn tso tsr tss tst tta ttb tte tti ttk ttl ttn tto ttr tts ttt