-al -ol a-a a-b a-i aaa aab aag aai aal aao ab- aba abb abg abi abl abo ag- aga agb agg agi agl ago ai- aia aib aig aii ail aio al- ala alb alg ali all alo aoa aob aog aoi aol aoo baa bab bag bai bal bao bba bbb bbg bbi bbl bbo bga bgb bgg bgi bgl bgo bi- bia bib big bii bil bio bla blb blg bli bll blo boa bob bog boi bol boo gaa gab gag gai gal gao gba gbg gbi gbl gbo gga ggb ggg ggi ggo gia gib gig gii gil gio gla glb glg gli gll glo goa gob gog goi gol goo ia- iaa iab iag iai ial iao iba ibb ibg ibi ibl ibo iga igb igg igi igl igo iia iib iii iil iio il- ila ilb ilg ili ill ilo io- ioa iob iog ioi iol ioo la- laa lab lag lai lal lao lba lbb lbg lbi lbl lbo lga lgb lgg lgi lgl lgo lia lib lig lii lil lio lla llb llg lli lll llo loa lob log loi lol loo o-i oaa oab oag oai oal oao ob- oba obb obg obi obl obo oga ogg ogi ogl ogo oia oib oii oil oio ola olb olg oli oll olo oo- ooa oob oog ooi ool ooo