bbbb bboy bbyo bobb bobo boby bomb bomt bomy boob boom boor boot bor- borm boro borr bort bory botb boto bott boty boyo brob brom broo bror brot brrm brrr bry- bryo btob btor btrt btry bttb byob byrt mmmm mmor mmyy mobb mobo moby momo momy moob moor moot morb moro mort mory motb motm moto mott moty moyo mrbb mrbm mrtm mrtt mtbo mtom mtor mtrr mttr mybb mymy myo- myob myot myro myrr myrt myry myto obbo obby obor obot oboy obro ombo omo- omoo omor omro omyt ooby oooo oort oory ootb ooty orbb orbo orby ormo ormy oro- orom oror orot oroy orro orry orto oto- otoo otor otoy otro otry otto otyr rbbb rbbr rob- robb robo robt roby romb romm romo romy roob room roor root roro rort rory roto rotr rott roty royt rrrr ryob ryot rytt ryyt t-mo tbrb tmbr tmro tmtt to-y tobo tobt toby tomb tomm tomo tomt tomy toom toor toot torm toro torr tort tory totm toto totr tott toty toyb toym toyo toyt trmb trom troo trot troy trtr try- tryb trym tryo ttbb ttoy tttt tybo tyr- tyro tyrr tyto tytt tyty ybor ybry yobo yomo yoot yoro yort yory yott yoyo yyyy