bbbb bbrg bfgf bhff bhir bhog bhoi bhor bibb bibi bibo biff bifi bigb bigg bigo bihi bio- biog bioi birb birg biri biro birr bobb bobi bobo boff bofh bogg bogh bogi bogo boho bohr boi- boii boob boof boog booh boor bor- borf borg borh bori boro borr brig brih brio brob brog broh broo bror brrr ffff ffii ffrr fghi fiff fifi fifo figg figo fiii fior fofo fogg fogh fogi fogo fohr foof for- forb forg fori foro forr frib frig frio frob frog froh gbbo gfor ggfg gggg gghg ghib ghoi ghrf gibb gibh giff gigg gigi gigo giog gioi girg giri giro girr gobi gobo goff gofr gogh gogi gogo gohb goif goof goog gooi goor gorb gorf gorg gori goro gorr grbr grib grif grig grob grof grog groh groi groo gror grrr h-ii hbio hhgg hhhh hhof hibi hiff hifh hifi hifo hifr high higi hihi hiho hiob hirf hiri hiro hobo hoff hogg hogh hogi hogo hoho hoif hoir hoof hoor horg hori horo horr hrib hrob i-go ibfi ibri ibro ifbb ifor ifrb ifrf ifri igbo igoo igor igri ihob iiii iiio iioi iioo iobi ioii ioio ioof iooi iooo iorg iori iri- irig irio irob iroh irri obbo oboi obor obrh obri obro off- offh offo offr ofgo ofor ogb ogfr oggi oghi ogog ogoi ogri ogro ohgr ohhi ohho ohif ohio ohob ohoh oigo oiii oobi ooff ooho oooh oooo orbb orbi orbo orff orfi orgo ori- orif orig orio oro- orof oror orri orro rbbb rbbr rbgh rboh rgbi rhbg rhib rhio rhob rhog rhoh rib- ribo riff rigg righ rigi rigo riho riif riri rob- robb robi robo roff rofo rogg rogh rogi rogo rohr roif roig roio roir roob roof roog rooi roor rori roro rrif rrrr