oiu okc oke okg oki okk oko okr oks oku on- onc one onf ong oni onk onn ono onr ons ont onu oo- ooc oof oog ooi ook oon ooo oor oos oot or- orc ore orf org ori ork orn oro orr ors ort oru os- osc ose osf osg osi osk osn oso osr oss ost osu ot- otc ote otf otg oti otk otn oto otr ots ott otu ou- ouc oue ouf oui ouk oun ouo our ous out rcc rce rcf rcg rci rcn rco rcr rcs rct rcu re- rec ree ref reg rei rek ren reo rer res ret reu rfc rfe rff rfg rfi rfk rfn rfo rfr rfs rft rfu rgc rge rgf rgg rgi rgk rgn rgo rgr rgs rgt ric rie rif rig rii rik rin rio rir ris rit rkc rke rkf rkg rkk rko rks rkt rku rnc rng rni rnn rno rnr rns rnt rnu roc roe rof rog roi rok ron roo ror ros rot rou rrc rrf rrg rri rrk rrn rrr rrs rrt rru rsc rse rsf rsg rsi rsk rsn rso rsr rss rst rsu rtc rte rtf rtg rti rtk rtn rto rtr rts rtt rtu ruc rue ruf rug rui ruk run ruo rur rus rut ruu scc sce scf scg sci sck scn sco scr scs sct scu se- sec see sef seg sei sek sen seo ser ses set seu sfc sfe sff sfg sfi sfk sfn sfo sfr sfs sft sfu sgc sge sgf sgg sgi sgk sgn sgo sgr sgs sgt sgu sic sie sif sig sii sik sin sio sir sis sit siu sk- skc ske skf skg ski skk sko skr sks skt sku snc sne snf sng sni snk snn sno snr sns snt snu soc soe sof sog soi sok son soo sor sos sot sou sr- src sre srf srg sri srk srn sro srr srs srt ss- ssc sse ssf ssg ssi ssk ssn sso ssr sss sst ssu stc ste stf stg sti stk stn sto str sts stt stu suc sue suf sug sui suk sun suo sur sus sut suu tcc tce tcf tcg tci tck tcn tco tcr tcs tct tcu te- tec tee tef teg tei tek ten teo ter tes tet teu tfc tfe tff tfg tfi tfk tfn tfo tfr tfs tft tfu tgc tge tgf tgg tgi tgk tgn tgo tgr tgs tgt tgu tic tie tif tig tii tik tin tio tir tis tit tiu tkc tke tkg tkk tko tkr tks tkt tnc tne tnf tng tni tnk tnn tno tnr tns tnt to- toc toe tof tog toi tok ton too tor tos tot tou trc tre trf trg tri trk trn tro trr trs trt tru tsc tse tsf tsg tsi tsk tsn tso tsr tss tst tsu ttc tte ttf ttg tti ttk ttn tto ttr tts ttt ttu tuc tue tuf tug tui tuk tun tuo tur tus tut tuu ucc uce ucf ucg uci uck ucn uco ucr ucs uct ucu uec uee uef ueg uei uen uer ues uet ufc ufe uff ufg ufi ufn ufo ufr ufs uft ufu ugc uge ugf ugg ugi ugk ugn ugo ugr ugs ugt ugu uic uie uif uig uii uin uio uir uis uit uiu ukc uke ukf uki ukk ukn ukr uku un- unc une unf ung uni unk unn uno unr uns unt unu uoc uoe uog uok uon uoo uor uos uot ur- urc ure urf urg uri urk urn uro urr urs urt uru usc use usf usg usi usk usn uso usr uss ust usu utc ute utf uti utk utn uto utr uts utt utu uuc uue uug uun uur uus uut uuu