-al -ic -ol a-a a-b a-c a-i aaa aab aac aaf aai aal aao ab- aba abb abc abf abi abl abo ac- aca acb acc acf aci acl aco af- afa afb afc aff afi afl afo ai- aia aib aic aif aii ail aio al- ala alb alc alf ali all alo aoa aob aoc aof aoi aol aoo baa bab bac baf bai bal bao bba bbb bbc bbf bbi bbl bbo bca bcb bcc bcf bci bcl bco bfa bfb bfc bff bfi bfl bfo bi- bia bib bic bif bii bil bio bla blb blc blf bli bll blo boa bob boc bof boi bol boo c-- caa cab cac caf cai cal cao cba cbb cbc cbf cbi cbl cbo cca ccb ccc ccf cci ccl cco cfa cfb cfc cff cfi cfl cfo ci- cia cib cic cif cii cil cio cl- cla clb clc clf cli cll clo co- coa cob coc cof coi col coo faa fab fac faf fai fal fao fba fbb fbc fbf fbi fbl fbo fca fcb fcc fcf fci fcl fco ffa ffc fff ffi ffl ffo fia fib fic fif fii fil fla flb flc flf fli fll flo foa fob foc fof foi fol foo i-f ia- iaa iab iac iaf iai ial iao iba ibb ibc ibf ibi ibl ibo ica icb icc icf ici icl ico ifa ifb ifc iff ifi ifl ifo iia iib iic iif iii iil iio il- ila ilb ilc ilf ili ill ilo io- ioa iob ioc iof ioi iol ioo la- laa lab lac laf lai lal lao lba lbb lbc lbf lbi lbl lbo lca lcb lcc lcf lci lcl lco lfa lfb lfc lff lfi lfl lfo lia lib lic lif lii lil lio lla llb llc llf lli lll llo loa lob loc lof loi lol loo o-i oaa oab oac oaf oai oal oao ob- oba obb obc obf obi obl obo oc- oca ocb occ ocf oci ocl oco of- ofa ofb ofc off ofi ofl ofo oia oib oic oif oii oil oio ola olb olc olf oli oll olo oo- ooa oob ooc oof ooi ool ooo