sdp sdr sds sdt sdu se- sec sed see sei sem seo sep ser ses set seu sic sid sie sii sim sio sip sir sis sit siu smc smd sme smi smm smo smp smr sms smt smu soc sod soe soi som soo sop sor sos sot sou spc spd spe spi spm spo spp spr sps spt spu sr- src srd sre sri srm sro srp srr srs srt ss- ssc ssd sse ssi ssm sso ssp ssr sss sst ssu stc std ste sti stm sto stp str sts stt stu suc sud sue sui sum suo sup sur sus sut suu tcc tcd tce tci tcm tco tcp tcr tcs tct tcu tdc tdd tde tdi tdm tdo tdp tdr tds tdt tdu te- tec ted tee tei tem teo tep ter tes tet teu tic tid tie tii tim tio tip tir tis tit tiu tmc tmd tme tmi tmm tmo tmp tmr tms tmt tmu to- toc tod toe toi tom too top tor tos tot tou tpc tpd tpe tpi tpm tpo tpp tpr tps tpt tpu trc trd tre tri trm tro trp trr trs trt tru tsc tsd tse tsi tsm tso tsp tsr tss tst tsu ttc ttd tte tti ttm tto ttp ttr tts ttt ttu tuc tud tue tui tum tuo tup tur tus tut tuu ucc ucd uce uci ucm uco ucp ucr ucs uct ucu udc udd ude udi udm udo udp udr uds udt udu uec ued uee uei uem uep uer ues uet uic uid uie uii uim uio uip uir uis uit uiu um- umc umd ume umi umm umo ump umr ums umt umu uoc uod uoe uom uoo uop uor uos uot up- upc upd upe upi upm upo upp upr ups upt upu ur- urc urd ure uri urm uro urp urr urs urt uru usc usd use usi usm uso usp usr uss ust usu utc utd ute uti utm uto utp utr uts utt utu uuc uue uum uur uus uut uuu