a-a a-i aaa aad aaf aai aan aao ad- ada add adf adi adn ado af- afa afd aff afi afn afo ai- aia aid aif aii ain aio an- ana and anf ani ann ano aoa aod aof aoi aon aoo daa dad daf dai dan dao dda ddd ddf ddi ddn ddo dfa dfd dff dfi dfn dfo di- dia did dif dii din dio dna dnd dnf dni dnn dno doa dod dof doi don doo faa fad faf fai fan fao fda fdd fdf fdi fdn fdo ffa ffd fff ffi ffn ffo fia fid fif fii fin fna fnd fnf fni fnn foa fof foi fon foo i-d i-f ia- iaa iad iaf iai ian iao ida idd idf idi idn ido ifa ifd iff ifi ifn ifo iia iid iif iii iin iio in- ina ind inf ini inn ino io- ioa iod iof ioi ion ioo n-i naa nad naf nai nan nao nda ndd ndf ndi ndn ndo nfa nfd nff nfi nfn nfo nia nid nif nii nin nio nna nnf nni nnn nno no- noa nod nof noi non noo o-i oaa oad oaf oai oan oao oda odd odf odi odn odo of- ofa ofd off ofi ofn ofo oia oid oif oii oin oio on- ona ond onf oni onn ono oo- ooa ood oof ooi oon ooo