-al a-a a-b a-i aaa aab aai aal aas aau aax ab- aba abb abi abl abs abu abx ai- aia aib aii ail ais aiu aix al- ala alb ali all als alu alx as- asa asb asi asl ass asu asx au- aua aub aui aul aus aux ax- axa axi axl axs axx b-u baa bab bai bal bas bau bax bba bbb bbi bbl bbs bbu bbx bi- bia bib bii bil bis biu bix bla blb bli bll bls blu blx bsa bsb bsi bsl bss bsu bsx bua bub bui bul bus buu bux bxb bxi bxl bxx ia- iaa iab iai ial ias iau iba ibb ibi ibl ibs ibu ibx iia iib iii iil iis iiu iix il- ila ilb ili ill ils ilu ilx is- isa isb isi isl iss isu iu- iua iub iui ius ixi ixl la- laa lab lai lal las lau lax lba lbb lbi lbl lbs lbu lbx lia lib lii lil lis liu lix lla llb lli lll lls llu lsa lsb lsi lsl lss lsu lua lub lui lul lus luu lux lxi lxx saa sab sai sal sas sau sax sba sbb sbi sbl sbs sbu sbx sia sib sii sil sis siu six sla slb sli sll sls slu slx ss- ssa ssb ssi ssl sss ssu ssx sua sub sui sul sus suu sux sxi sxl sxs sxu ua- uaa uab uai ual uas uau uba ubb ubi ubl ubs ubu ubx uia uib uii uil uis uiu ula ulb uli ull uls ulu usa usb usi usl uss usu usx uua uus uuu uxb uxu xaa xal xas xau xbl xbx xia xii xis xiu xix xla xlb xli xls xsa xsb xsi xsl xss xui xul xus xxi xxl xxx