-er b-u bbb bbe bbi bbn bbq bbr bbs bbu be- beb bee bei ben beq ber bes beu bi- bib bie bii bin bir bis biu bnb bne bni bnn bnr bns bnu bqe brb bre bri brn brq brr brs bru bsb bse bsi bsn bsr bss bsu bub bue bui bun bur bus buu ebb ebe ebi ebn ebq ebr ebs ebu eeb eee een eer ees eib eie eii ein eir eis eiu en- enb ene eni enn enr ens enu eqe eqn eqq eqs equ erb ere eri ern erq err ers eru es- esb ese esi esn esq esr ess esu eu- eub eue eui eun eur eus ibb ibe ibi ibn ibr ibs ibu ie- iee iei ien ier ies iib iie iii iin iir iis iiu in- inb ine ini inn inq inr ins inu iqe iqs iqu ir- irb ire iri irn irq irr irs iru is- isb ise isi isn isq isr iss isu iu- iub iue iui iur ius n-i nbb nbe nbi nbn nbr nbs nbu ne- neb nee nei nen ner nes neu nib nie nii nin niq nir nis niu nnb nne nni nnn nns nnu nqs nrb nre nri nrn nrr nrs nru nsb nse nsi nsn nsr nss nsu nub nue nui nun nuq nur nus nuu qbe qbq qbs qee qen qie qin qir qis qiu qnb qne qni qns qqq qqu qrb qre qri qrs qru qsi qsr qu- que qui qur qus rbb rbe rbi rbn rbr rbs rbu re- reb ree rei ren req rer res reu rib rie rii rin riq rir ris rnb rni rnn rnr rns rnu rqn rqs rrb rri rrn rrq rrr rrs rru rsb rse rsi rsn rsq rsr rss rsu rub rue rui run rur rus ruu sbb sbe sbi sbn sbq sbr sbs sbu se- seb see sei sen seq ser ses seu sib sie sii sin siq sir sis siu snb sne sni snn snr sns snu sqi sqn sqq sqr sqs sr- srb sre sri srn srq srr srs ss- ssb sse ssi ssn ssq ssr sss ssu sub sue sui sun suq sur sus suu ubb ube ubi ubn ubr ubs ubu ueb uee uei uen uer ues uib uie uii uin uiq uir uis uiu un- unb une uni unn unq unr uns unu ur- urb ure uri urn urr urs uru usb use usi usn usr uss usu uue uun uur uus uuu