-er b-u bbb bbe bbi bbn bbo bbr bbt bbu be- beb bee bei ben beo ber bet beu bi- bib bie bii bin bio bir bit biu bnb bne bni bnn bno bnr bnt bnu bob boe boi bon boo bor bot bou brb bre bri brn bro brr brt bru btb bte bti btn bto btr btt btu bub bue bui bun buo bur but buu ebb ebe ebi ebn ebo ebr ebt ebu eeb eee een eeo eer eet eib eie eii ein eio eir eit eiu en- enb ene eni enn eno enr ent enu eo- eob eoe eoi eon eoo eor eot eou erb ere eri ern ero err ert eru etb ete eti etn eto etr ett etu eu- eub eue eui eun eur eut ibb ibe ibi ibn ibo ibr ibt ibu ie- iee iei ien ier iet iib iie iii iin iio iir iit iiu in- inb ine ini inn ino inr int inu io- iob ioe ioi ion ioo ior iot iou ir- irb ire iri irn iro irr irt iru itb ite iti itn ito itt itu iu- iub iue iui iur iut n-i nbb nbe nbi nbn nbo nbr nbt nbu ne- neb nee nei nen neo ner net neu nib nie nii nin nio nir nit niu nnb nne nni nnn nno nnt nnu no- nob noe noi non noo nor not nou nrb nre nri nrn nro nrr nrt nru ntb nte nti ntn nto ntr ntt ntu nub nue nui nun nuo nur nut nuu o-i ob- obb obe obi obn obo obr obt obu oeb oee oei oen oeo oer oet oib oie oii oin oio oir oit oiu on- onb one oni onn ono onr ont onu oo- oob ooi oon ooo oor oot or- orb ore ori orn oro orr ort oru ot- otb ote oti otn oto otr ott otu ou- oue oui oun ouo our out rbb rbe rbi rbn rbo rbr rbt rbu re- reb ree rei ren reo rer ret reu rib rie rii rin rio rir rit rnb rni rnn rno rnr rnt rnu rob roe roi ron roo ror rot rou rrb rri rrn rrr rrt rru rtb rte rti rtn rto rtr rtt rtu rub rue rui run ruo rur rut ruu tbb tbe tbi tbn tbo tbr tbt tbu te- teb tee tei ten teo ter tet teu tib tie tii tin tio tir tit tiu tnb tne tni tnn tno tnr tnt to- tob toe toi ton too tor tot tou trb tre tri trn tro trr trt tru ttb tte tti ttn tto ttr ttt ttu tub tue tui tun tuo tur tut tuu ubb ube ubi ubn ubo ubr ubt ubu ueb uee uei uen uer uet uib uie uii uin uio uir uit uiu un- unb une uni unn uno unr unt unu uob uoe uon uoo uor uot ur- urb ure uri urn uro urr urt uru utb ute uti utn uto utr utt utu uue uun uur uut uuu