-al -ol a-a a-b a-i aaa aab aad aai aak aal aao aar ab- aba abb abd abi abk abl abo abr ad- ada adb add adi adk adl ado adr ai- aia aib aid aii aik ail aio air aka akb akd aki akk akl ako akr al- ala alb ald ali alk all alo alr aoa aob aod aoi aok aol aoo aor ar- ara arb ard ari ark arl aro arr baa bab bad bai bak bal bao bar bba bbb bbd bbi bbk bbl bbo bbr bda bdb bdd bdi bdk bdl bdo bdr bi- bia bib bid bii bik bil bio bir bka bkb bkk bkl bko bkr bla blb bld bli blk bll blo blr boa bob bod boi bok bol boo bor bra brb brd bri brk brl bro brr daa dab dad dai dak dal dao dar dba dbb dbd dbi dbk dbl dbo dbr dda ddb ddd ddi ddk ddl ddo ddr di- dia dib did dii dik dil dio dir dka dkb dki dkk dkl dko dkr dl- dla dlb dld dli dlk dll dlo dlr doa dob dod doi dok dol doo dor dra drb drd dri drk drl dro drr i-d ia- iaa iab iad iai ial iao iar iba ibb ibd ibi ibk ibl ibo ibr ida idb idd idi idk idl ido idr iia iib iid iii iil iio iir ika ikb iki ikk ikl iko ikr il- ila ilb ild ili ilk ill ilo ilr io- ioa iob iod ioi iol ioo ior ir- ira irb ird iri irk irl iro irr ka- kaa kab kad kai kak kal kao kar kba kbb kbd kbi kbk kbl kbo kbr kda kdb kdk kdl kdo kdr kia kib kid kii kik kil kio kir kkb kki kkk kkl kkr kl- kla klb kld kli klo klr koa kob kod koi kok kol koo kor kra krd kri krk krl kro krr la- laa lab lad lai lak lal lao lar lba lbb lbd lbi lbk lbl lbo lbr lda ldb ldd ldi ldk ldl ldo ldr lia lib lid lii lik lil lio lir lka lkb lkl lkr lla llb lld lli llk lll llo llr loa lob lod loi lok lol loo lor lra lrb lrd lri lrk lro lrr o-i oaa oab oad oai oak oal oao oar ob- oba obb obd obi obk obl obo obr oda odb odd odi odl odo odr oia oib oid oii oik oil oio oir oka okb okd oki okk okl oko okr ola olb old oli olk oll olo oo- ooa oob ood ooi ook ool ooo oor or- ora orb ord ori ork orl oro orr ra- raa rab rad rai rak ral rao rar rba rbb rbd rbi rbk rbl rbo rbr rda rdb rdd rdi rdl rdo rdr ria rib rid rii rik ril rio rir rkb rkk rko rla rld rli rll rlo rlr roa rob rod roi rok rol roo ror rra rrb rrd rri rrk rrl rrr