-al a-a a-b a-i aaa aab aad aai aak aal aar ab- aba abb abd abi abk abl abr ad- ada adb add adi adk adl adr ai- aia aib aid aii aik ail air aka akb akd aki akk akl akr al- ala alb ald ali alk all alr ar- ara arb ard ari ark arl arr baa bab bad bai bak bal bar bba bbb bbd bbi bbk bbl bbr bda bdb bdd bdi bdk bdl bdr bi- bia bib bid bii bik bil bir bka bkb bkk bkl bkr bla blb bld bli blk bll blr bra brb brd bri brk brl brr daa dab dad dai dak dal dar dba dbb dbd dbi dbk dbl dbr dda ddb ddd ddi ddk ddl ddr di- dia dib did dii dik dil dir dka dkb dki dkk dkl dkr dl- dla dlb dld dli dlk dll dlr dra drb drd dri drk drl drr i-d ia- iaa iab iad iai ial iar iba ibb ibd ibi ibk ibl ibr ida idb idd idi idk idl idr iia iib iid iii iil iir ika ikb iki ikk ikl ikr il- ila ilb ild ili ilk ill ilr ir- ira irb ird iri irk irl irr ka- kaa kab kad kai kak kal kar kba kbb kbd kbi kbk kbl kbr kda kdb kdk kdl kdr kia kib kid kii kik kil kir kkb kki kkk kkl kkr kl- kla klb kld kli klr kra krd kri krk krl krr la- laa lab lad lai lak lal lar lba lbb lbd lbi lbk lbl lbr lda ldb ldd ldi ldk ldl ldr lia lib lid lii lik lil lir lka lkb lkl lkr lla llb lld lli llk lll llr lra lrb lrd lri lrk lrr ra- raa rab rad rai rak ral rar rba rbb rbd rbi rbk rbl rbr rda rdb rdd rdi rdl rdr ria rib rid rii rik ril rir rkb rkk rla rld rli rll rlr rra rrb rrd rri rrk rrl rrr