l-pop llupy lollo lolly lolol loopy lopou loppy loxo- lully lulul luppy lupul lyxo- ollup olupy ooooo oploo opoly oppol opypy oullo ouxpo p-o-x ploop plopp plopu plupp po-po pollo pollu polly polop poly- polyl polyp polyu pooly poopo poopy popop poppo poppy popup poulp poulx pouly poylu poyou pppox pull- pullu pully pulpy puppo puppy puyoo pylo- u-pop uloop ululu upolo upolu uuuuu uyuly xoxox xoylu xylo- xylol xylyl y-o-u ylppo yo-yo youll youup ypyll yuppy