spo spp spr sps spt spu spy sr- srb src sre sri srl srm srn sro srp srr srs srt sry ss- ssb ssc sse ssi ssl ssm ssn sso ssp ssr sss sst ssu stb stc ste sti stl stm stn sto stp str sts stt stu sty sub suc sue sui sul sum sun suo sup sur sus sut suu suy sy- syb syc sye syi syl sym syn syp syr sys syt syu tbb tbc tbe tbi tbl tbm tbn tbo tbp tbr tbs tbt tbu tcb tcc tce tci tcl tcm tcn tco tcp tcr tcs tct tcu te- teb tec tee tei tel tem ten teo tep ter tes tet teu tey tib tic tie tii til tim tin tio tip tir tis tit tiu tiy tlc tle tli tll tlm tln tlo tlp tlr tls tlt tlu tmb tmc tme tmi tml tmm tmn tmo tmp tmr tms tmt tmu tmy tnb tnc tne tni tnl tnm tnn tno tnp tnr tns tnt to- tob toc toe toi tol tom ton too top tor tos tot tou toy tpb tpc tpe tpi tpl tpm tpn tpo tpp tpr tps tpt tpu trb trc tre tri trl trm trn tro trp trr trs trt tru try tsb tsc tse tsi tsl tsm tsn tso tsp tsr tss tst tsu tsy ttb ttc tte tti ttl ttm ttn tto ttp ttr tts ttt ttu tty tub tuc tue tui tul tum tun tuo tup tur tus tut tuu tuy tyc tye tyl tym tyn tyo typ tyr tys tyt ubb ubc ube ubi ubl ubn ubo ubp ubr ubs ubt ubu uby ucb ucc uce uci ucl ucm ucn uco ucp ucr ucs uct ucu ueb uec uee uei uel uem uen uep uer ues uet uey uib uic uie uii uil uim uin uio uip uir uis uit uiu ulb ulc ule uli ull ulm uln ulo ulp ulr uls ult ulu uly um- umb umc ume umi uml umm umn umo ump umr ums umt umu un- unb unc une uni unl unm unn uno unp unr uns unt unu uny uob uoc uoe uol uom uon uoo uop uor uos uot up- upb upc upe upi upm upn upo upp upr ups upt upu ur- urb urc ure uri url urm urn uro urp urr urs urt uru ury usb usc use usi usl usm usn uso usp usr uss ust usu utb utc ute uti utl utm utn uto utp utr uts utt utu uty uuc uue uum uun uur uus uut uuu uyc uyi uyo uys uyu ybc ybe ybi ybl ybm ybp ybr ybs yby ycc yce yci ycl yco ycp ycs ycu ycy yeb yec yee yei yel yem yen yeo yep yer yes yet yey yie yii yim yin yio yip yir yis yit ylc yle yli yll ylm ylr yls ylt yly ymc yme ymi yml ymm ymo yms ymt yne ynn ynp yns ynu yny yob yoc yoe yoi yol yom yon yoo yop yor yos yot you yoy ypl ypo yps ypu yrc yre yrn yro yrp yrs yrt yru ysb ysc yse ysi ysl ysm yso ysp ysr yss yst ysu ysy ytc yte ytl ytm ytn yto ytp ytr yts ytt ytu yue yui yul yum yun yuo yup yur yus yut yuu yuy yyb yyc yye yys yyt yyu yyy