a-a a-t aaa aad aan aao aas aat ad- ada add adn ado ads adt an- ana and ann ano ans ant aoa aod aon aoo aos aot as- asa asd asn aso ass ast at- ata atd atn ato ats att daa dad dan dao das dat dda ddd ddn ddo dds ddt dna dnd dnn dno dns dnt doa dod don doo dos dot dsa dsd dsn dso dss dst dta dtd dtn dto dts dtt naa nad nan nao nas nat nda ndd ndn ndo nds ndt nna nnn nno nns nnt no- noa nod non noo nos not nsa nsd nsn nso nss nst nta ntd ntn nto nts ntt oaa oad oan oao oas oat oda odd odn odo ods odt on- ona ond onn ono ons ont oo- ooa ood oon ooo oos oot os- osa osd osn oso oss ost ot- ota otd otn oto ots ott saa sad san sao sas sat sda sdd sdn sdo sds sdt sna snd snn sno sns snt soa sod son soo sos sot ss- ssa ssd ssn sso sss sst sta std stn sto sts stt taa tad tan tao tas tat tda tdd tdn tdo tds tdt tna tnd tnn tno tns tnt to- toa tod ton too tos tot tsa tsd tsn tso tss tst tta ttd ttn tto tts ttt