-al -ol a-a a-b a-i aaa aab aai aal aao aas aau ab- aba abb abi abl abo abs abu ai- aia aib aii ail aio ais aiu al- ala alb ali all alo als alu aoa aob aoi aol aoo aos aou as- asa asb asi asl aso ass asu au- aua aub aui aul auo aus b-u baa bab bai bal bao bas bau bba bbb bbi bbl bbo bbs bbu bi- bia bib bii bil bio bis biu bla blb bli bll blo bls blu boa bob boi bol boo bos bou bsa bsb bsi bsl bso bss bsu bua bub bui bul buo bus buu ia- iaa iab iai ial iao ias iau iba ibb ibi ibl ibo ibs ibu iia iib iii iil iio iis iiu il- ila ilb ili ill ilo ils ilu io- ioa iob ioi iol ioo ios iou is- isa isb isi isl iso iss isu iu- iua iub iui ius la- laa lab lai lal lao las lau lba lbb lbi lbl lbo lbs lbu lia lib lii lil lio lis liu lla llb lli lll llo lls llu loa lob loi lol loo los lou lsa lsb lsi lsl lso lss lsu lua lub lui lul luo lus luu o-i oaa oab oai oal oao oas oau ob- oba obb obi obl obo obs obu oia oib oii oil oio ois oiu ola olb oli oll olo ols olu oo- ooa oob ooi ool ooo oos os- osa osb osi osl oso oss osu ou- oua oui oul ouo ous saa sab sai sal sao sas sau sba sbb sbi sbl sbo sbs sbu sia sib sii sil sio sis siu sla slb sli sll slo sls slu soa sob soi sol soo sos sou ss- ssa ssb ssi ssl sso sss ssu sua sub sui sul suo sus suu ua- uaa uab uai ual uao uas uau uba ubb ubi ubl ubo ubs ubu uia uib uii uil uio uis uiu ula ulb uli ull ulo uls ulu uoa uob uol uoo uos usa usb usi usl uso uss usu uua uus uuu