-al -ol a-a a-b aaa aab aak aal aan aao aar aau ab- aba abb abk abl abn abo abr abu aka akb akk akl akn ako akr aku al- ala alb alk all aln alo alr alu an- ana anb ank anl ann ano anr anu aoa aob aok aol aon aoo aor aou ar- ara arb ark arl arn aro arr aru au- aua aub auk aul aun auo aur b-u baa bab bak bal ban bao bar bau bba bbb bbk bbl bbn bbo bbr bbu bka bkb bkk bkl bkn bko bkr bla blb blk bll bln blo blr blu bna bnb bnk bnl bnn bno bnr bnu boa bob bok bol bon boo bor bou bra brb brk brl brn bro brr bru bua bub buk bul bun buo bur buu ka- kaa kab kak kal kan kao kar kau kba kbb kbk kbl kbn kbo kbr kbu kkb kkk kkl kkn kkr kku kl- kla klb klo klr klu kn- kna knk knl knn kno knr knu koa kob kok kol kon koo kor kou kra krk krl krn kro krr kru kub kuk kul kun kur kuu la- laa lab lak lal lan lao lar lau lba lbb lbk lbl lbo lbr lbu lka lkb lkl lkr lla llb llk lll lln llo llr llu lna lnb lnk lnl lnn lno lnr lnu loa lob lok lol lon loo lor lou lra lrb lrk lrn lro lrr lru lua lub luk lul lun luo lur luu naa nab nak nal nan nao nar nau nba nbb nbk nbl nbn nbo nbr nbu nka nkk nkn nko nkr nku nla nlb nlk nll nln nlo nlr nlu nna nnb nnk nnl nnn nno nnu no- noa nob nok nol non noo nor nou nra nrb nrk nrl nrn nro nrr nru nua nub nuk nul nun nuo nur nuu oaa oab oak oal oan oao oar oau ob- oba obb obk obl obn obo obr obu oka okb okk okl oko okr oku ola olb olk oll oln olo olu on- ona onb onk onl onn ono onr onu oo- ooa oob ook ool oon ooo oor or- ora orb ork orl orn oro orr oru ou- oua ouk oul oun ouo our ra- raa rab rak ral ran rao rar rau rba rbb rbk rbl rbn rbo rbr rbu rkb rkk rko rku rla rll rln rlo rlr rlu rna rnb rnn rno rnr rnu roa rob rok rol ron roo ror rou rra rrb rrk rrl rrn rrr rru rua rub ruk run ruo rur ruu ua- uaa uab uak ual uan uao uar uau uba ubb ubk ubl ubn ubo ubr ubu uka ukb ukk ukl ukn ukr uku ula ulb ulk ull uln ulo ulr ulu un- una unb unk unl unn uno unr unu uoa uob uok uol uon uoo uor ur- ura urb urk url urn uro urr uru uua uun uur uuu