-er b-u bbb bbe bbh bbi bbo bbr bbu be- beb bee beh bei beo ber beu bhb bhe bhh bhi bho bhr bhu bi- bib bie bih bii bio bir biu bob boe boh boi boo bor bou brb bre brh bri bro brr bru bub bue buh bui buo bur buu ebb ebe ebh ebi ebo ebr ebu eeb eee eeo eer ehb ehe ehh ehi eho ehr ehu eib eie eii eio eir eiu eo- eob eoe eoh eoi eoo eor eou erb ere erh eri ero err eru eu- eub eue eui eur h-i hbb hbe hbh hbi hbo hbr hbu he- heb hee heh hei heo her heu hhb hhe hhh hhi hho hhr hhu hib hie hih hii hio hir hiu hob hoe hoh hoi hoo hor hou hr- hrb hre hrh hri hro hrr hru hub hue huh hui huo hur huu ibb ibe ibh ibi ibo ibr ibu ie- iee iei ier ihb ihe ihh ihi iho ihr ihu iib iie iih iii iio iir iiu io- iob ioe ioh ioi ioo ior iou ir- irb ire iri iro irr iru iu- iub iue iui iur o-i ob- obb obe obh obi obo obr obu oeb oee oeh oei oeo oer ohe ohh ohi oho ohr ohu oib oie oii oio oir oiu oo- oob ooh ooi ooo oor or- orb ore orh ori oro orr oru ou- oue ouh oui ouo our rbb rbe rbh rbi rbo rbr rbu re- reb ree reh rei reo rer reu rh- rhb rhe rhh rhi rho rhr rhu rib rie rih rii rio rir rob roe roh roi roo ror rou rrb rrh rri rrr rru rub rue ruh rui ruo rur ruu ubb ube ubh ubi ubo ubr ubu ueb uee ueh uei uer uhb uhe uhh uhi uho uhr uhu uib uie uii uio uir uiu uob uoe uoo uor ur- urb ure uri uro urr uru uue uur uuu