sor sos sot sou spf spg sph spi spn spo spp spr sps spt spu sr- srf srg srh sri srn sro srp srr srs srt ss- ssf ssg ssh ssi ssn sso ssp ssr sss sst ssu stf stg sth sti stn sto stp str sts stt stu suf sug suh sui sun suo sup sur sus sut suu tff tfg tfh tfi tfn tfo tfp tfr tfs tft tfu tgf tgg tgh tgi tgn tgo tgp tgr tgs tgt tgu th- thf thg thh thi thn tho thp thr ths tht thu tif tig tih tii tin tio tip tir tis tit tiu tnf tng tnh tni tnn tno tnp tnr tns tnt to- tof tog toh toi ton too top tor tos tot tou tpf tpg tph tpi tpn tpo tpp tpr tps tpt tpu trf trg trh tri trn tro trp trr trs trt tru tsf tsg tsh tsi tsn tso tsp tsr tss tst tsu ttf ttg tth tti ttn tto ttp ttr tts ttt ttu tuf tug tuh tui tun tuo tup tur tus tut tuu uff ufg ufh ufi ufn ufo ufp ufr ufs uft ufu ugf ugg ugh ugi ugn ugo ugp ugr ugs ugt ugu uhf uhh uhi uho uhp uhr uhs uht uhu uif uig uii uin uio uip uir uis uit uiu un- unf ung unh uni unn uno unp unr uns unt unu uog uon uoo uop uor uos uot up- upf upg uph upi upn upo upp upr ups upt upu ur- urf urg uri urn uro urp urr urs urt uru usf usg ush usi usn uso usp usr uss ust usu utf uth uti utn uto utp utr uts utt utu uug uun uur uus uut uuu