sbr sbs sbt sbu sca scb scc scd sce sch scl scr scs sct scu sda sdb sdc sdd sde sdh sdl sdr sds sdt sdu se- sea seb sec sed see seh sel ser ses set seu sh- sha shb shc shd she shh shl shr shs sht shu sla slb slc sld sle slh sll slr sls slt slu sr- sra srb src srd sre srh srl srr srs srt ss- ssa ssb ssc ssd sse ssh ssl ssr sss sst ssu sta stb stc std ste sth stl str sts stt stu sua sub suc sud sue suh sul sur sus sut suu taa tab tac tad tae tah tal tar tas tat tau tba tbb tbc tbd tbe tbh tbl tbr tbs tbt tbu tca tcb tcc tcd tce tch tcl tcr tcs tct tcu tda tdb tdc tdd tde tdh tdl tdr tds tdt tdu te- tea teb tec ted tee teh tel ter tes tet teu th- tha thb thc thd the thh thl thr ths tht thu tla tlc tld tle tlh tll tlr tls tlt tlu tra trb trc trd tre trh trl trr trs trt tru tsa tsb tsc tsd tse tsh tsl tsr tss tst tsu tta ttb ttc ttd tte tth ttl ttr tts ttt ttu tua tub tuc tud tue tuh tul tur tus tut tuu ua- uaa uab uac uad uae uah ual uar uas uat uau uba ubb ubc ube ubh ubl ubr ubs ubt ubu uca ucb ucc ucd uce uch ucl ucr ucs uct ucu uda udb udc udd ude udl udr uds udt udu uea ueb uec ued uee ueh uel uer ues uet uha uhb uhc uhd uhe uhh uhl uhr uhs uht uhu ula ulb ulc uld ule ull ulr uls ult ulu ur- ura urb urc urd ure url urr urs urt uru usa usb usc usd use ush usl usr uss ust usu uta utb utc utd ute uth utl utr uts utt utu uua uuc uue uur uus uut uuu