bbbb bblb bbox bboy bbyo blob blom bloo blou bloy blub blum bly- blym bobb bobo bobu boby boll bolm bolo bolu boly bomb bomu bomy boob bool boom boox boul boum bouy boxy boyl boyo bubb bubo bubu bulb bull bulu bum- bumb buol buoy buxy buyl buyo buyu byob byol byul llll lloo lmbo lmmx lob- lobb lobo loby loll lolo loly lomb lomm lomo lomu lomy loob lool loom loul loum louu loux lox- loxo luby lull lulu lumb lumo luxo lxxx lyly lymb lymm lyo- lyx- mbou mbox mlxx mlym mmmm mmxl mmxx mmyy mobb mobo moby moll molo moly momo momu momy moob mool moul moux mouy moxo moxy moyl moyo moyu mubo mull mulm mulo mulu muly mumm mumo mumu mumy muxu muxy mxlo mxml mybb myl- myll mylo mymy myo- myob myx- myxo myxy obbo obby oblu obol obox oboy olbo olby ollo olly olmo olom olux ombo ombu omo- omoo omox omul omuo ooby oolo oooo oulu oulx ouu- oxo- oxox oxxo oxy- oxyl oyly oyou ubbo ublo ubly ubyx ullo ully ulmo ulmu ulo- ulul ulum umb- umbo ummo umol uoml uomo uulu uuuu uxul xbox xlox xolo xoom xoxo xoyo xumo xuxu xxxo xxxx xxxy xyl- xylo yobo yoll yolo yoly yomo yool youb youl youx yoyo yubu yulo yulu yuxu yuyu yyyy