lloro lo-pro lollop loloru lonnol looloo loplop loulon loulou lourlo lovon lunlun lurulu luvovo non-no non-op nonono nonoon nonpro noonoo noonor nopulp nounou null-o nullor nurpur nurulu oloron olorun onroll oooooo orrour ouolon ouroun plonno polpol polron poluru ponnur poopoo pop-up popopo poporo popovo poppop populo porno- porron porvoo poupon poupou pouron pppppp propup propur pullno pullon pullup pullur punpun purloo purnor purpur r-loop rollon rollup ronnon ronron rounou roupov run-on run-up ruurlo ulloor unloop unlull unprop unroll unu-op uponon uponor uppoor upprop uproll uruppu v-prop volnov volovo vorlon voulon vulvo- vvvvvv