bbbee be-er be-ro beber beebe beeri beffe befie befoe befor beher behie behir behof beibi beier beife beihe beire beofe beoff beoir berbe bereh berei berhe berie berio berob beroe beror berre berri bheer bheri bhooi bhore bibbe bibbo biber bibie bibio bibri biebe biefe biere bieri bifer biffi biffo bifor biher bihor biore birie bo-bo bo-ho bobbi bobr bobre bobri boero boffi boffo bohor bohri boibe boier boire boiro booer boore borbo boree borer borio boro- boroo borre borro breef breer breo- brere bribe brief brier brobo broer brrrr ebber ebbie ebibe ebrio eeeee eerie efere eferi effer effie effio efore efrei ehire eieio eirie eofor eorre erbbe erber erere erier eriff erio- eroor erore error febio febre feeor feere fefor feher feier feoff ferie ferio ferr- ferre ferri ferro fiber fibr- fibre fibro fieee fieri fiero fifer fifie fiore fiori firee fireh firei firer firie firre foir- foire foore fore- foreh foreo forio forro freeh freei freer freir frere frier frobe frore h-bio h-e-b h-iib he-he he-ro hebbe hebe- hebei heber hebri heeii heere hefei hefer heffe heihe heire heore herei herie herif heroe herre herro hhhhh hi-fi hi-hi hibhi hibob hibor hibri hier- hiero hiree hirer hiroe hiroi hiroo ho-ho ho-oh hobie hoboe hobor hobro hoeie hoeri hofer hofii hohoe hooer hooie hoore hoori horeb horhe horie horii horio horre horro hrere i-beo ibeof ibero ibibo ibore ieiri ierei ieroe if-- ifere iherb ihere ihhof iiiee iiiii ioffe ioooi ioooo iorio irobo irori o-fer o-r-b obeie obhor oboro obreb oeiro offer offie offir offof offre ofher ofori oh-oh oheir ohfoo ohrio ohrob oo-er ooher ooioo ooooh ooooo oorie orebi oreo- oreoi orere orero orfeh orfei orfeo orfoe orfor orhei oribe oribi orobe orobo oroer rebbe reber reefe reere reerh refer reffe reffo reher rehoe rehri reiff rere- reree rerir rerob rheo- rhoeo ri-fi ribbi riber ribie ribo- riefe rifeh rifer riife ririe ro-ro robbe robbi robbo rober robie robo- robor roero roffe rofor rohff rohob rohri rooer roofe roohi roore rorer