iiooio illipi illizi illupi iloilo irrour lilipi lilliu lilpop lilpri lilpur liluri lippir lirrop lloro lo-pro lollop loloru looloo loplop loulou lourlo lurulu luzoir oooooo oopiri opilio oriolo orroli orrour ouioui oulipo pilili piliol pillor pillou pillur pilolo pilori pilour pilpul piopio pioppi piozzo pipili pipilo pipipi pipiri pippip pippul pirili pirooz pirrip piupiu pluri- poipoi polio- polipo pollio polloi polpol polroz poluli poluru poopoo pop-up popill popoli popopo poporo poppop populi populo poriol porzio pouoir poupou pourri pouzol pppppp priolo priori prioro priour prizzi proli- propi- propir propup propur prozor pruili puliol pullip pullup pullur pulpi puriri purloo purpur puruli r-loop ripoli ripoll rolli rollio rollup rozzol ruurlo ruzizi ulloor uppoor upprop uproll uruppu zip-up zooloo zoozoo zorzor zouzou zulilu