bbbb bbin bblb bibb bibi bibl biin bili bill bilu bily bin- bini binn binu biny birb biri birl birn birr biru biry blin blir blni blub blur bly- blyn bnib bnin bnrr bril brin brrr brun bry- bryn bubb bubi bubu buin buir buiu bulb buli bull bulu bunb buni bunn bunu bur- burb buri burl burn burr buru bury buyi buyl buyu byil byrn byul byun i-by ibly ibri ibuy ibyi iiii ilin ilir ill- illi illy ilni iluy inby inly inni innr innu inny inri inui inul inun irby iri- iril irin iriy irlb irri irul irun iryn iuiu lblr libr libu liii liin liir lilb lili lill lilu lily linn liny liri lirl lirn lirr liru liry liun liyl liyu llll llyn llyr lrrr lrry luby luin luli lull lulu luni lunn luny luri lury luyi lyin lyly lynn lyun lyyn n-ii nibi niir niiu nili nill nilu nini ninl niru niur niyi nlrb nnnn nrlb nrrl nubi nubl nuby nuin nuli null nunn nuny nuri nurl nurn nurr nuru nyll nyny nyrb nyul rbbb rbbr rib- ribu riby riin rill rilu rily rinn riny riri rlin rnbr rnin rnli rrrr rrun rubb rubi rubu ruby ruin rull ruly runi runn runy ruri ruru ruun ruyi ruyl rynn ryun ubbi ubii ubir ubli ubly uirr ulli ullr ully ulul uni- unii unin unir unni urbi urib urin uriu urni urri urry urun urur uryn uulu uuni uuri uuuu uuyn uyin uyir ybnl ybry yili yill yirb yirn yirr ylli yrin yrly yrun yryn yubu yuin yuli yulu yuny yuri yurn yury yuyu yyyy