bbbb bbdd bbdo bbeb bdii bebb bebe bebi bebo bede bedi bedo beeb beed beek beik beke beki beko beo- beod beok bibb bibe bibi bibo bide bidi bido bieb bied bike biko bio- bioi bobb bobe bobi bobo bodb bode bodi bodo boee boeo boi- boid boie boii boke boki boko boob bood booe book d-bo dddd ddie debe debi dedd dede dedi dedo deeb deed deek deid deie dek- deke dibb dibe dibo dide didi dido dieb died diii dike diki diko dkid dobb dobe dobi dod- dodd dode dodi dodo doek doid doke doki doko doob dood dook ebbo ebed ebid eboe eboo edde eddi eddo ede- edei edie edik edod eede eeee eeke eid- eide eidi eido eied eiei eike eiki eiko ekeb eked ekek ekki ekoi eode i-be ibdo ibed ibid ibie idbe iddo ided idee ideo idid idie idio ieie ieio iide iied iiie iiii iiio iioi iioo ikee ikid ikki ikko ikoo iobi iod- iodd iode iodo ioee ioii ioio ioke ioko iooi iooo k-id kbbb kbbd kbbe kbbi kbbk kbbo kbdb kbde kbdi kbdo kbeb kbed kbee kbek kbeo kbib kbid kbie kbik kbio kbkb kbkk kbko kbob kbod kboe kboi kbok kboo kdbb kdbi kddb kddd kddi kddk kdeb kdei kdio kdkb kdkd kdkk kdko kdoe kdok kebb kebe kebi kedb kedd kede kedi kedo keed keek keib keid keii keik keio kekb keke keki keko keok kibb kibe kibi kibo kidb kidd kide kidi kidk kido kiid kiii kiik kikd kiki kikk kiko kiod kioe kioi kiok kioo kkbb kkbd kkbe kkbi kkbo kkdd kkdo kked kkid kkik kkkk kkob kkoo kobb kobe kobi kobk kobo kode kodi kodk kodo koed koei koii kokb koke koki kokk koko koob kooi kook kooo o-eo obbo obed obid obie obkb oboe oboi obok odbo oddd oddi oded odei odeo odie odio odoo oedo oeid oido oiii oike oiko oked okie okko okok oobe oobi oodi ooid oooo