bbbb bbrg bfgf bibb bibi bibo biff bifi bigb bigg bigo biko bio- biog bioi birb birg biri birk biro birr bobb bobi bobo boff bogg bogi bogo boi- boii boki boko boob boof boog book boor bor- borf borg bori bork boro borr brig brik brio brkb brob brog brok broo bror brrr f--k ffff ffii ffrr fiff fifi fifo figg figo fiii fiki fior firk fofo fogg fogi fogo foki foof fook for- forb forg fori fork foro forr frib frig frik frio frob frog gbbo gfor ggfg gggg gibb giff gigg gigi gigo giog gioi girg giri girk giro girr gobi gobo goff gofr gogi gogo goif goof goog gooi gook goor gorb gorf gorg gori goro gorr grbr grib grif grig grob grof grog groi grok groo gror grrr i-go ibfi ibri ibro ifbb ifor ifrb ifrf ifri igbo igoo igor igri iiii iiio iioi iioo ikig ikki ikko ikoo ikri iobi ioii ioio ioko ioof iooi iooo iorg iori iri- irig irio irki irob irri kbbb kbbf kbbg kbbi kbbk kbbo kbbr kbfb kbff kbfi kbfk kbfo kbfr kbgb kbgg kbgo kbgr kbib kbif kbig kbik kbio kbkb kbkf kbkg kbkk kbko kbkr kbob kboi kbok kboo kbrb kbrf kbrg kbri kbrk kbro kfbk kffb kfff kffg kffk kfgi kfgo kfgr kfig kfio kfir kfkb kfog kfok kfoo kfor kfrg kfri kfro kfrr kgbb kgbr kgff kgfk kggf kggg kggi kggo kggr kgif kgio kgir kgor kgrb kgrg kgri kgrk kgro kgrr kibb kibg kibi kibo kibr kiff kifg kifr kigo kiii kiik kikf kiki kikk kiko kikr kioi kiok kioo kirb kirf kiri kirk kiro kirr kkbb kkbg kkbi kkbo kkbr kkfg kkfi kkfr kkgb kkgo kkgr kkik kkkk kkob kkoo kkor kkrb kkrf kkrk kkro kkrr kobb kobi kobk kobo kobr koff kofg kofi kofk kofo kogb kogg kogi kogo koii koir kokb kokf koki kokk koko kokr koob koog kooi kook kooo koor korb korf korg kori kork koro korr krbb krbg krbi krbk krbr krff krfg krfo krgi krib krik krio krki krkk krko krkr krob krof krog kroi krok kroo kror krrb krrf krrg krri krrk krro krrr obbo obkb oboi obok obor obri obro off- offo offr ofgo ofik ofor ogb ogfr oggi ogog ogoi ogri ogro oigo oiii oiko okgo okir okko okok okor okro oobi ooff oooo orbb orbi orbo orff orfi orgo ori- orif orig orio orko oro- orof orok oror orri orro rbbb rbbr rgbi rib- ribo riff rigg rigi rigo riif riki rikk riri rkkf rob- robb robi robo roff rofo rogg rogi rogo roif roig roik roio roir roki rokk roko rokr roob roof roog rooi rook roor rori rork roro rrif rrrr