a-a a-i aaa aad aaf aai aam aao aap aar aas ad- ada add adf adi adm ado adp adr ads af- afa afd aff afi afm afo afp afr afs ai- aia aid aif aii aim aio aip air ais ama amd amf ami amm amo amp amr ams aoa aod aof aoi aom aoo aop aor aos ap- apa apd apf api apm apo app apr aps ar- ara ard arf ari arm aro arp arr ars as- asa asd asf asi asm aso asp asr ass daa dad daf dai dam dao dap dar das dda ddd ddf ddi ddm ddo ddp ddr dds dfa dfd dff dfi dfm dfo dfp dfr dfs di- dia did dif dii dim dio dip dir dis dma dmd dmf dmi dmm dmo dmp dmr dms doa dod dof doi dom doo dop dor dos dpa dpd dpf dpi dpm dpo dpp dpr dps dra drd dri drm dro drp drr drs dsa dsd dsf dsi dsm dso dsp dsr dss faa fad faf fai fam fao fap far fas fda fdd fdf fdi fdm fdo fdp fdr fds ffa ffd fff ffi ffm ffo ffp ffr ffs fia fid fif fii fim fip fir fis fma fmd fmf fmi fmm fmo fmp fmr fms foa fof foi fom foo fop for fos fpa fpd fpi fpm fpo fpp fpr fps fra frd frf fri frm fro frp frr frs fsa fsd fsf fsi fsm fso fsp fsr fss i-d i-f ia- iaa iad iaf iai iam iao iap iar ias ida idd idf idi idm ido idp idr ids ifa ifd iff ifi ifm ifo ifp ifr ifs iia iid iif iii iim iio iip iir iis im- ima imd imf imi imm imo imp ims io- ioa iod iof ioi iom ioo iop ior ios ipa ipd ipf ipi ipm ipo ipp ipr ips ir- ira ird irf iri irm iro irp irr irs is- isa isd isf isi ism iso isp isr iss m-f m-o m-r maa mad maf mai mam mao map mar mas mda mdd mdf mdi mdm mdo mdp mdr mds mfa mfd mff mfi mfm mfo mfp mfr mfs mi- mia mid mif mii mim mio mip mir mis mma mmd mmf mmi mmm mmo mmp mmr mms moa mod mof moi mom moo mop mor mos mpa mpd mpf mpi mpm mpo mpp mpr mps mra mrd mrf mri mrm mro mrp mrr mrs msa msd msf msi msm mso msp msr mss o-i oaa oad oaf oai oam oao oap oar oas oda odd odf odi odm odo odp odr ods of- ofa ofd off ofi ofm ofo ofp ofr ofs oia oid oif oii oim oio oip oir ois om- oma omd omf omi omm omo omp omr oms oo- ooa ood oof ooi oom ooo oop oor oos op- opa opd opf opi opm opo opp opr ops or- ora ord orf ori orm oro orp orr ors os- osa osd osf osi osm oso osp osr oss p-p paa pad paf pai pam pao pap par pas pda pdd pdf pdi pdm pdo pdp pdr pds pfa pfd pff pfi pfm pfo pfp pfr pfs pia pid pif pii pim pio pip pir pis pma pmd pmf pmi pmm pmo pmp pmr pms poa pod pof poi pom poo pop por pos ppa ppd ppf ppi ppm ppo ppp ppr pps pra prd prf pri prm pro prp prr prs ps- psa psd psf psi psm pso psp psr pss ra- raa rad raf rai ram rao rap rar ras rda rdd rdf rdi rdm rdo rdp rdr rds rfa rfd rff rfi rfm rfo rfp rfr rfs ria rid rif rii rim rio rip rir ris rma rmd rmf rmi rmm rmo rmp rmr rms roa rod rof roi rom roo rop ror ros rpa rpd rpf rpi rpm rpo rpp rpr rps rra rrd rrf rri rrm rrp rrr rrs rsa rsd rsf rsi rsm rso rsp rsr rss saa sad saf sai sam sao sap sar sas sda sdd sdf sdi sdm sdo sdp sdr sds sfa sfd sff sfi sfm sfo sfp sfr sfs sia sid sif sii sim sio sip sir sis sma smd smf smi smm smo smp smr sms soa sod sof soi som soo sop sor sos spa spd spf spi spm spo spp spr sps sr- sra srd srf sri srm sro srp srr srs ss- ssa ssd ssf ssi ssm sso ssp ssr sss