-al a-a a-b a-z aaa aab aad aal aar aau aaz ab- aba abb abd abl abr abu abz ad- ada adb add adl adr adu adz al- ala alb ald all alr alu alz ar- ara arb ard arl arr aru arz au- aua aub aud aul aur auz az- aza azb azd azu azz b-u baa bab bad bal bar bau baz bba bbb bbd bbl bbr bbu bda bdb bdd bdl bdr bdu bdz bla blb bld bll blr blu blz bra brb brd brl brr bru brz bua bub bud bul bur buu buz bza bzd bzr bzu bzz daa dab dad dal dar dau daz dba dbb dbd dbl dbr dbu dbz dda ddb ddd ddl ddr ddu ddz dl- dla dlb dld dll dlr dlu dra drb drd drl drr dru drz dua dub dud dul dur duz dza dzb dzd dzr dzu la- laa lab lad lal lar lau laz lba lbb lbd lbl lbr lbu lda ldb ldd ldl ldr ldu lla llb lld lll llr llu llz lra lrb lrd lrr lru lrz lua lub lud lul lur luu luz lzr lzu ra- raa rab rad ral rar rau raz rba rbb rbd rbl rbr rbu rda rdb rdd rdl rdr rdu rla rld rll rlr rlu rra rrb rrd rrl rrr rru rua rub rud rur ruu ruz rza rzb ua- uaa uab uad ual uar uau uaz uba ubb ubl ubr ubu uda udb udd udl udr udu ula ulb uld ull ulr ulu ur- ura urb urd url urr uru urz uua uur uuu uza uzb uzu zaa zab zad zar zaz zbb zbl zbr zla zlr zrl zub zud zul zur zuz zzr zzz