-hou bbbb bbch bbcm bcbc bccc bccm bcuc bhcc bhuu bmoc bobb bobo bobu boch bocm boco bocu bohm boho bohu bomb bomu boob booc booh boom bouh boum bubb bubo bubu bucc buch buco bucu buho bum- bumb c-bo cbbc cbcc cbcm cbcu ccbc cccb cccc cccm cccu ccmb ccmc ccmm ccob ccoc ccom ccuc chch chcm chmb chmc chmo choc choh choo chou chub chum cmbc cmcc cmhc cmmb cmmc cmoc cobb cobh cobo cobu coch coco cocu coho com- comb comc comm como comu coob cooh coom coub cub- cubb cucc cucm cum- hboc hcbc hccb hccc hcch hcmc hcmm hhhh hmhb hmmm hobo hoch hohm hoho hom- homo homu hoom hubb hubo huch hucu huhu humh humm humo huub mbou mcbc mccc mcmc mhmm mmcc mmcm mmhm mmmc mmmh mmmm mobb mobo moch moco mohm moho mohu momo momu moob mooc mubo muc- mucc much mucu muhu mumm mumo mumu obbo obuh ocbc occc ocom ocum ohcc ohho ohob ohoh ohum ombo ombu omo- omoo omuo ooho oooh oooo oucc ouch ouu- ubbo uboc ucbc ucho ucmc ucom uhoh uhuh umb- umbo ummo uocc uomo uuoc uuuu