saa sac sad sai sal san sao sap sas sat sau sca scc scd sci scl scn sco scp scs sct scu sda sdc sdd sdi sdl sdn sdo sdp sds sdt sdu sia sic sid sii sil sin sio sip sis sit siu sla slc sld sli sll sln slo slp sls slt slu sna snc snd sni snl snn sno snp sns snt snu soa soc sod soi sol son soo sop sos sot sou spa spc spd spi spl spn spo spp sps spt spu ss- ssa ssc ssd ssi ssl ssn sso ssp sss sst ssu sta stc std sti stl stn sto stp sts stt stu sua suc sud sui sul sun suo sup sus sut suu taa tac tad tai tal tan tao tap tas tat tau tca tcc tcd tci tcl tcn tco tcp tcs tct tcu tda tdc tdd tdi tdl tdn tdo tdp tds tdt tdu tia tic tid tii til tin tio tip tis tit tiu tla tlc tld tli tll tln tlo tlp tls tlt tlu tna tnc tnd tni tnl tnn tno tnp tns tnt to- toa toc tod toi tol ton too top tos tot tou tpa tpc tpd tpi tpl tpn tpo tpp tps tpt tpu tsa tsc tsd tsi tsl tsn tso tsp tss tst tsu tta ttc ttd tti ttl ttn tto ttp tts ttt ttu tua tuc tud tui tul tun tuo tup tus tut tuu ua- uaa uac uad uai ual uan uao uap uas uat uau uca ucc ucd uci ucl ucn uco ucp ucs uct ucu uda udc udd udi udl udn udo udp uds udt udu uia uic uid uii uil uin uio uip uis uit uiu ula ulc uld uli ull uln ulo ulp uls ult ulu un- una unc und uni unl unn uno unp uns unt unu uoa uoc uod uol uon uoo uop uos uot up- upa upc upd upi upn upo upp ups upt upu usa usc usd usi usl usn uso usp uss ust usu uta utc utd uti utl utn uto utp uts utt utu uua uuc uun uus uut uuu