-al -ol a-a a-b a-i aaa aab aad aae aag aai aal aao ab- aba abb abd abe abg abi abl abo ad- ada adb add ade adg adi adl ado aea aeb aed aee aeg aei ael aeo ag- aga agb agd age agg agi agl ago ai- aia aib aid aie aig aii ail aio al- ala alb ald ale alg ali all alo aoa aob aod aoe aog aoi aol aoo baa bab bad bae bag bai bal bao bba bbb bbd bbe bbg bbi bbl bbo bda bdb bdd bde bdg bdi bdl bdo be- bea beb bed bee beg bei bel beo bga bgb bgd bge bgg bgi bgl bgo bi- bia bib bid bie big bii bil bio bla blb bld ble blg bli bll blo boa bob bod boe bog boi bol boo daa dab dad dae dag dai dal dao dba dbb dbd dbe dbg dbi dbl dbo dda ddb ddd dde ddg ddi ddl ddo de- dea deb ded dee deg dei del deo dga dgd dge dgg dgi dgl di- dia dib did die dig dii dil dio dl- dla dlb dld dle dlg dli dll dlo doa dob dod doe dog doi dol doo eaa eab ead eae eag eai eal eao eba ebb ebd ebe ebg ebi ebl ebo ed- eda edb edd ede edg edi edl edo eea eeb eed eee eeg eel eeo ega egb egd ege egg egi egl ego eia eib eid eie eig eii eil eio ela elb eld ele elg eli ell elo eo- eoa eob eod eoe eog eoi eol eoo g-d gaa gab gad gae gag gai gal gao gba gbd gbe gbg gbi gbl gbo gda gdb gdd gde gdi gdl gdo ge- gea geb ged gee geg gei gel geo gga ggb ggd ggg ggi ggo gia gib gid gie gig gii gil gio gla glb gld gle glg gli gll glo goa gob god goe gog goi gol goo i-d ia- iaa iab iad iae iag iai ial iao iba ibb ibd ibe ibg ibi ibl ibo ida idb idd ide idg idi idl ido ie- iea ied iee ieg iei iel iga igb igd ige igg igi igl igo iia iib iid iie iii iil iio il- ila ilb ild ile ilg ili ill ilo io- ioa iob iod ioe iog ioi iol ioo la- laa lab lad lae lag lai lal lao lba lbb lbd lbe lbg lbi lbl lbo lda ldb ldd lde ldg ldi ldl ldo lea leb led lee leg lei lel leo lga lgb lgd lge lgg lgi lgl lgo lia lib lid lie lig lii lil lio lla llb lld lle llg lli lll llo loa lob lod loe log loi lol loo o-i oaa oab oad oae oag oai oal oao ob- oba obb obd obe obg obi obl obo oda odb odd ode odg odi odl odo oea oeb oed oee oeg oei oel oeo oga ogd oge ogg ogi ogl ogo oia oib oid oie oii oil oio ola olb old ole olg oli oll olo oo- ooa oob ood oog ooi ool ooo