a-a a-i aaa aaf aai aam aan aao aas af- afa aff afi afm afn afo afs ai- aia aif aii aim ain aio ais ama amf ami amm amn amo ams an- ana anf ani anm ann ano ans aoa aof aoi aom aon aoo aos as- asa asf asi asm asn aso ass faa faf fai fam fan fao fas ffa fff ffi ffm ffn ffo ffs fia fif fii fim fin fis fma fmf fmi fmm fmn fmo fms fna fnf fni fnm fnn fns foa fof foi fom fon foo fos fsa fsf fsi fsm fsn fso fss i-f ia- iaa iaf iai iam ian iao ias ifa iff ifi ifm ifn ifo ifs iia iif iii iim iin iio iis im- ima imf imi imm imn imo ims in- ina inf ini inm inn ino ins io- ioa iof ioi iom ion ioo ios is- isa isf isi ism isn iso iss m-f m-o maa maf mai mam man mao mas mfa mff mfi mfm mfn mfo mfs mi- mia mif mii mim min mio mis mma mmf mmi mmm mmn mmo mms mna mnf mni mnm mnn mno mns moa mof moi mom mon moo mos msa msf msi msm msn mso mss n-i naa naf nai nam nan nao nas nfa nff nfi nfn nfo nfs nia nif nii nim nin nio nis nma nmi nmm nmn nmo nms nna nnf nni nnm nnn nno nns no- noa nof noi nom non noo nos nsa nsf nsi nsm nsn nso nss o-i oaa oaf oai oam oan oao oas of- ofa off ofi ofm ofn ofo ofs oia oif oii oim oin oio ois om- oma omf omi omm omn omo oms on- ona onf oni onn ono ons oo- ooa oof ooi oom oon ooo oos os- osa osf osi osm osn oso oss saa saf sai sam san sao sas sfa sff sfi sfm sfn sfo sfs sia sif sii sim sin sio sis sma smf smi smm smn smo sms sna snf sni snm snn sno sns soa sof soi som son soo sos ss- ssa ssf ssi ssm ssn sso sss