-er b-u bbb bbe bbi bbk bbn bbo bbr bbu bbw be- beb bee bei bek ben beo ber beu bew bi- bib bie bii bik bin bio bir biu biw bkb bke bkk bkn bko bkr bkw bnb bne bni bnk bnn bno bnr bnu bnw bob boe boi bok bon boo bor bou bow brb bre bri brk brn bro brr bru brw bub bue bui buk bun buo bur buu buw bwb bwi bwk bwo bwr bwu ebb ebe ebi ebk ebn ebo ebr ebu ebw eeb eee eek een eeo eer eew eib eie eii eik ein eio eir eiu ekb eke eki eko ekr eku en- enb ene eni enk enn eno enr enu enw eo- eob eoe eoi eok eon eoo eor eou eow erb ere eri erk ern ero err eru erw eu- eub eue eui eun eur ewb ewe ewi ewk ewo ewr ewu eww ibb ibe ibi ibk ibn ibo ibr ibu ibw ie- iee iei iek ien ier iib iie iii iin iio iir iiu iiw ikb ike iki ikk iko ikr iku in- inb ine ini ink inn ino inr inu io- iob ioe ioi ion ioo ior iou iow ir- irb ire iri irk irn iro irr iru iu- iub iue iui iur iwb iwe iwi iwk iwo iwr iwu iww kbb kbe kbi kbk kbn kbo kbr kbu kbw ke- keb kee kei kek ken keo ker kew kib kie kii kik kin kio kir kiu kkb kke kki kkk kkn kkr kku kn- kne kni knk knn kno knr knu kob koe koi kok kon koo kor kou kow kri krk krn kro krr kru krw kub kue kui kuk kun kur kuu kw- kwi kwk kwo kww n-i nbb nbe nbi nbk nbn nbo nbr nbu nbw ne- neb nee nei nek nen neo ner neu new nib nie nii nik nin nio nir niu nke nki nkk nkn nko nkr nku nnb nne nni nnk nnn nno nnu nnw no- nob noe noi nok non noo nor nou now nrb nre nri nrk nrn nro nrr nru nrw nub nue nui nuk nun nuo nur nuu nwb nwe nwi nwn nwo nwr nwu o-i ob- obb obe obi obk obn obo obr obu obw oeb oee oei oen oeo oer oib oie oii oik oin oio oir oiu okb oke oki okk oko okr oku okw on- onb one oni onk onn ono onr onu oo- oob ooi ook oon ooo oor oow or- orb ore ori ork orn oro orr oru ou- oue oui ouk oun ouo our owb owe owi owk own owo owu oww rbb rbe rbi rbk rbn rbo rbr rbu rbw re- reb ree rei rek ren reo rer reu rew rib rie rii rik rin rio rir rkb rke rkk rko rku rnb rni rnn rno rnr rnu rnw rob roe roi rok ron roo ror rou row rrb rri rrk rrn rrr rru rub rue rui ruk run ruo rur ruu rwb rwe rwi rwr rwu ubb ube ubi ubk ubn ubo ubr ubu ubw ueb uee uei uen uer uew uib uie uii uin uio uir uiu ukb uke uki ukk ukn ukr uku un- unb une uni unk unn uno unr unu unw uob uoe uok uon uoo uor uow ur- urb ure uri urk urn uro urr uru urw uue uun uur uuu uwb uwe uwn uwr uww wbb wbe wbi wbn wbo wbr wbw web wee wei wek wen weo wer wew wib wie wii wik win wir wiu wkb wke wko wkr wkw wn- wne wnn wno wnu wnw wob woe woi wok won woo wor wou wow wr- wre wri wrk wrn wro wrr wru wrw wub wue wun wuo wur wwe wwi wwn wwo wwu www