-al -ol a-a a-b a-i aaa aab aai aal aan aao aar aau ab- aba abb abi abl abn abo abr abu ai- aia aib aii ail ain aio air aiu al- ala alb ali all aln alo alr alu an- ana anb ani anl ann ano anr anu aoa aob aoi aol aon aoo aor aou ar- ara arb ari arl arn aro arr aru au- aua aub aui aul aun auo aur b-u baa bab bai bal ban bao bar bau bba bbb bbi bbl bbn bbo bbr bbu bi- bia bib bii bil bin bio bir biu bla blb bli bll bln blo blr blu bna bnb bni bnl bnn bno bnr bnu boa bob boi bol bon boo bor bou bra brb bri brl brn bro brr bru bua bub bui bul bun buo bur buu ia- iaa iab iai ial ian iao iar iau iba ibb ibi ibl ibn ibo ibr ibu iia iib iii iil iin iio iir iiu il- ila ilb ili ill iln ilo ilr ilu in- ina inb ini inl inn ino inr inu io- ioa iob ioi iol ion ioo ior iou ir- ira irb iri irl irn iro irr iru iu- iua iub iui iur la- laa lab lai lal lan lao lar lau lba lbb lbi lbl lbo lbr lbu lia lib lii lil lin lio lir liu lla llb lli lll lln llo llr llu lna lnb lni lnl lnn lno lnr lnu loa lob loi lol lon loo lor lou lra lrb lri lrn lro lrr lru lua lub lui lul lun luo lur luu n-i naa nab nai nal nan nao nar nau nba nbb nbi nbl nbn nbo nbr nbu nia nib nii nil nin nio nir niu nla nlb nli nll nln nlo nlr nlu nna nnb nni nnl nnn nno nnu no- noa nob noi nol non noo nor nou nra nrb nri nrl nrn nro nrr nru nua nub nui nul nun nuo nur nuu o-i oaa oab oai oal oan oao oar oau ob- oba obb obi obl obn obo obr obu oia oib oii oil oin oio oir oiu ola olb oli oll oln olo olu on- ona onb oni onl onn ono onr onu oo- ooa oob ooi ool oon ooo oor or- ora orb ori orl orn oro orr oru ou- oua oui oul oun ouo our ra- raa rab rai ral ran rao rar rau rba rbb rbi rbl rbn rbo rbr rbu ria rib rii ril rin rio rir rla rli rll rln rlo rlr rlu rna rnb rni rnn rno rnr rnu roa rob roi rol ron roo ror rou rra rrb rri rrl rrn rrr rru rua rub rui run ruo rur ruu ua- uaa uab uai ual uan uao uar uau uba ubb ubi ubl ubn ubo ubr ubu uia uib uii uil uin uio uir uiu ula ulb uli ull uln ulo ulr ulu un- una unb uni unl unn uno unr unu uoa uob uol uon uoo uor ur- ura urb uri url urn uro urr uru uua uun uur uuu