bbb bbe bbi bbk bbn bbs bbt be- beb bee bei bek ben bes bet bi- bib bie bii bik bin bis bit bkb bke bkk bkn bks bkt bnb bne bni bnk bnn bns bnt bsb bse bsi bsk bsn bss bst btb bte bti btk btn bts btt ebb ebe ebi ebk ebn ebs ebt eeb eee eek een ees eet eib eie eii eik ein eis eit ekb eke eki eks ekt en- enb ene eni enk enn ens ent es- esb ese esi esk esn ess est etb ete eti etk etn ets ett ibb ibe ibi ibk ibn ibs ibt ie- iee iei iek ien ies iet iib iie iii iin iis iit ikb ike iki ikk iks ikt in- inb ine ini ink inn ins int is- isb ise isi isk isn iss ist itb ite iti itk itn its itt k-t kbb kbe kbi kbk kbn kbs ke- keb kee kei kek ken kes ket kib kie kii kik kin kis kit kkb kke kki kkk kkn kks kkt kn- kne kni knk knn knt ksb kse ksi ksk ksn kss kst ktb kte ktk ktn kts ktt n-i nbb nbe nbi nbk nbn nbs nbt ne- neb nee nei nek nen nes net nib nie nii nik nin nis nit nke nki nkk nkn nks nkt nnb nne nni nnk nnn nns nnt nsb nse nsi nsk nsn nss nst ntb nte nti ntk ntn nts ntt sbb sbe sbi sbk sbn sbs sbt se- seb see sei sek sen ses set sib sie sii sik sin sis sit sk- skb ske ski skk sks skt snb sne sni snk snn sns snt ss- ssb sse ssi ssk ssn sss sst stb ste sti stk stn sts stt tbb tbe tbi tbk tbn tbs tbt te- teb tee tei tek ten tes tet tib tie tii tik tin tis tit tkb tke tkk tks tkt tnb tne tni tnk tnn tns tnt tsb tse tsi tsk tsn tss tst ttb tte tti ttk ttn tts ttt