rod roe rog roi rok rol roo rop ror ros rot rpd rpe rpg rpi rpk rpl rpo rpp rpr rps rpt rrd rrg rri rrk rrl rrp rrr rrs rrt rsd rse rsg rsi rsk rsl rso rsp rsr rss rst rtd rte rtg rti rtk rtl rto rtp rtr rts rtt sdd sde sdg sdi sdk sdl sdo sdp sdr sds sdt se- sed see seg sei sek sel seo sep ser ses set sgd sge sgg sgi sgk sgl sgo sgp sgr sgs sgt sid sie sig sii sik sil sio sip sir sis sit sk- skd ske skg ski skk skl sko skp skr sks skt sld sle slg sli slk sll slo slp slr sls slt sod soe sog soi sok sol soo sop sor sos sot spd spe spg spi spk spl spo spp spr sps spt sr- srd sre srg sri srk srl sro srp srr srs srt ss- ssd sse ssg ssi ssk ssl sso ssp ssr sss sst std ste stg sti stk stl sto stp str sts stt tdd tde tdg tdi tdk tdl tdo tdp tdr tds tdt te- ted tee teg tei tek tel teo tep ter tes tet tge tgg tgi tgk tgl tgo tgp tgr tgs tgt tid tie tig tii tik til tio tip tir tis tit tke tkg tkk tkl tko tkp tkr tks tkt tld tle tlg tli tlk tll tlo tlp tlr tls tlt to- tod toe tog toi tok tol too top tor tos tot tpd tpe tpg tpi tpk tpl tpo tpp tpr tps tpt trd tre trg tri trk trl tro trp trr trs trt tsd tse tsg tsi tsk tsl tso tsp tsr tss tst ttd tte ttg tti ttk ttl tto ttp ttr tts ttt