-th bbb bbh bbk bbn bbo bbr bbs bbt bhb bhh bhk bho bhr bhs bht bkb bkk bkn bko bkr bks bkt bnb bnk bnn bno bnr bns bnt bob boh bok bon boo bor bos bot brb brh brk brn bro brr brs brt bsb bsh bsk bsn bso bsr bss bst btb bth btk btn bto btr bts btt hbb hbh hbk hbn hbo hbr hbs hbt hhb hhh hhk hhn hho hhr hhs hht hkb hkh hkk hkn hko hkr hks hkt hnb hnh hnk hnn hno hns hnt hob hoh hok hon hoo hor hos hot hr- hrb hrh hrk hrn hro hrr hrs hrt hsb hsh hsk hsn hsr hss hst htb hth htk htn hto htr hts htt k-t kbb kbh kbk kbn kbo kbr kbs khh khk khn kho khr khs kkb kkh kkk kkn kkr kks kkt kn- knk knn kno knr knt kob koh kok kon koo kor kos kot krk krn kro krr krs krt ksb ksh ksk ksn kso ksr kss kst ktb kth ktk ktn kto ktr kts ktt nbb nbk nbn nbo nbr nbs nbt nhb nhh nhk nhn nhr nhs nht nkk nkn nko nkr nks nkt nnb nnh nnk nnn nno nns nnt no- nob noh nok non noo nor nos not nrb nrk nrn nro nrr nrs nrt nsb nsh nsk nsn nso nsr nss nst ntb nth ntk ntn nto ntr nts ntt ob- obb obh obk obn obo obr obs obt ohh ohn oho ohr ohs oht okb okk oko okr oks on- onb onh onk onn ono onr ons ont oo- oob ooh ook oon ooo oor oos oot or- orb orh ork orn oro orr ors ort os- osb osh osk osn oso osr oss ost ot- otb oth otk otn oto otr ots ott rbb rbh rbk rbn rbo rbr rbs rbt rh- rhb rhh rhn rho rhr rhs rht rkb rkk rko rks rkt rnb rnh rnn rno rnr rns rnt rob roh rok ron roo ror ros rot rrb rrh rrk rrn rrr rrs rrt rsb rsh rsk rsn rso rsr rss rst rtb rtk rtn rto rtr rts rtt sbb sbh sbk sbn sbo sbr sbs sbt sh- shb shh shk shn sho shr shs sht sk- skb skh skk sko skr sks skt snb snk snn sno snr sns snt sob soh sok son soo sor sos sot sr- srb srh srk srn sro srr srs srt ss- ssb ssh ssk ssn sso ssr sss sst stb sth stk stn sto str sts stt tbb tbh tbk tbn tbo tbr tbs tbt th- thb thh thk thn tho thr ths tht tkb tkk tko tkr tks tkt tnb tnh tnk tnn tno tnr tns tnt to- tob toh tok ton too tor tos tot trb trh trk trn tro trr trs trt tsb tsh tsk tsn tso tsr tss tst ttb tth ttk ttn tto ttr tts ttt