sff sfg sfm sfn sfr sfs sft sfu sga sgb sge sgf sgg sgm sgn sgr sgs sgt sgu sma smb sme smf smg smm smn smr sms smt smu sna snb sne snf sng snm snn snr sns snt snu sr- sra srb sre srf srg srm srn srr srs srt ss- ssa ssb sse ssf ssg ssm ssn ssr sss sst ssu sta stb ste stf stg stm stn str sts stt stu sua sub sue suf sug sum sun sur sus sut suu taa tab tae taf tag tam tan tar tas tat tau tba tbb tbe tbf tbg tbm tbn tbr tbs tbt tbu te- tea teb tee tef teg tem ten ter tes tet teu tfa tfb tfe tff tfg tfm tfn tfr tfs tft tfu tga tgb tge tgf tgg tgm tgn tgr tgs tgt tgu tma tmb tme tmf tmg tmm tmn tmr tms tmt tmu tna tnb tne tnf tng tnm tnn tnr tns tnt tra trb tre trf trg trm trn trr trs trt tru tsa tsb tse tsf tsg tsm tsn tsr tss tst tsu tta ttb tte ttf ttg ttm ttn ttr tts ttt ttu tua tub tue tuf tug tum tun tur tus tut tuu ua- uaa uab uae uaf uag uam uan uar uas uat uau uba ubb ube ubf ubg ubn ubr ubs ubt ubu uea ueb uee uef ueg uem uen uer ues uet ufa ufe uff ufg ufm ufn ufr ufs uft ufu uga ugb uge ugf ugg ugm ugn ugr ugs ugt ugu um- uma umb ume umf umg umm umn umr ums umt umu un- una unb une unf ung unm unn unr uns unt unu ur- ura urb ure urf urg urm urn urr urs urt uru usa usb use usf usg usm usn usr uss ust usu uta utb ute utf utm utn utr uts utt utu uua uue uug uum uun uur uus uut uuu