-ly b-u bbb bbi bbl bbs bbu bby bi- bib bii bil bis biu biy blb bli bll bls blu bly bsb bsi bsl bss bsu bsy bub bui bul bus buu buy by- byi byl bys byu ibb ibi ibl ibs ibu iby iib iii iil iis iiu il- ilb ili ill ils ilu ily is- isb isi isl iss isu isy iu- iub iui ius iys iyy lbb lbi lbl lbs lbu lib lii lil lis liu llb lli lll lls llu lly lsb lsi lsl lss lsu lub lui lul lus luu luy lyl lys sbb sbi sbl sbs sbu sby sib sii sil sis siu slb sli sll sls slu sly ss- ssb ssi ssl sss ssu sub sui sul sus suu suy sy- syb syi syl sys syu ubb ubi ubl ubs ubu uby uib uii uil uis uiu ulb uli ull uls ulu uly usb usi usl uss usu uus uuu uyi uys uyu ybi ybl ybs yby yii yis yli yll yls yly ysb ysi ysl yss ysu ysy yui yul yus yuu yuy yyb yys yyu yyy