bbgun bbuss blrgs blubs blurb blurr blurs brrrr brugg brull brung brunn bruns bruss bruun bugun bulb- bulbs bull- bulls bulul bulun bulus bungs bungu bunun bunus burbs burgs burgu burls burn- burns burrs burru burun burus bussu busur busuu ggulu glubb glubs glugs gnsbr grgur grrls grrrl grrrr grubb grubs gruss gubru gugul gulls gungu gunlu gunnr gunns gunsn gurls gurns gursu gurun gurur gurus lgnrs llrrs lubun lubur lugus lulls lulul lulus lungs lungu lunns lurgg lurun lusus n-sub ngugu ngulu nguru nluug nu-nu nubus nulls nunns nunun nurlu nursu nurun nurus nusus rubus rungs rungu s-bus slubs slugs slung slurb slurg slurs sluss snbrn snub- snubs snugs snurl snuss ss-gb ssbul sssrb sssss subbu subss suggs sugnu sugru sugus sulls sulur sulus sunbl sunbs surbl surgu surul surur surus susun susus suuns ugrug ullur ululu uluru ungul ungur unnun unnur unrug unrun unsu unsub unsun unurn urgun ursus urubu usbgn ussun uuuuu