-hou bbbb bbch bbci bcbc bcbg bccc bcci bcuc bhcc bhog bhoi bhuu bibb bibi bibo bicc bicg bich bici bico bigb bigc bigg bigo bigu bihi bihu bio- bioc biog bioi biou bobb bobi bobo bobu boch boco bocu bogg bogh bogi bogo boho bohu boi- boii boiu boob booc boog booh bouh bubb bubi bubo bubu bucc buch buci buco bucu bugg bugh bugi bugo buhi buho buic buiu c-bo cbbc cbcc cbcu cbgb ccbc cccb cccc ccci cccu ccgc ccic ccii ccob ccoc ccuc cgcc cgcg chch chci chgb chib chic chig chih chiu choc choh choi choo chou chub chug chui cibc cibi cibo cicc cich cici cico cicu cigi cigu ciii ciob ciuc cobb cobh cobi cobo cobu coch coco cocu cogh cogi cogo coho coob cooh coub cub- cubb cubi cucc cuci cui- gbbo gc-c gcbc gccc gcic gcii gggg gghg ghib ghoi ghug gibb gibh gigg gigi gigo giog gioi gobi gobo goch gogh gogi gogo gohb goog gooi gou- goug gubb gubi gubu guch guci gugb gugg gugh gugi gugu guib h-ii hbic hbio hboc hcbc hccb hccc hcch hcgh hchi hggc hhgg hhhh hi-c hibi hibu hicc hich hico high higi hihc hihi hiho hiiu hiob hioc hobo hoch hogg hogh hogi hogo hogu hoho hubb hubi hubo huch hucu hugg hugh hugi hugo huhi huhu huib huub i-go icbc iccb iccc icci icco iccu icgc ichc ichi icho ichu icoc icub igbc igbo igcc igoo ihcc ihob ihub ihug ihuo iiii iiio iioi iioo iiuc iobi iocg ioci ioii ioio iooi iooo ioug iucc iuiu obbo oboi obuh ocbc occc occi ochi ogb oggi oghi ogog ogoi ogou ogui ohcc ohhi ohho ohio ohob ohoh oici oigo oiii oobi ooho oooh oooo oucc ouch ough ouii ouu- ubbi ubbo ubic ubii uboc ucbc ucci uchi ucho ucio ugcc ugcg uggo ughi uguu uhoh uhuh uocc uuoc uuuu