a-a a-b aaa aab aad aan aar aas aaw ab- aba abb abd abn abr abs abw ad- ada adb add adn adr ads adw an- ana anb and ann anr ans ar- ara arb ard arn arr ars arw as- asa asb asd asn asr ass asw aw- awa awb awd awn awr aws aww baa bab bad ban bar bas baw bba bbb bbd bbn bbr bbs bbw bda bdb bdd bdr bds bdw bna bnb bnd bnn bnr bns bnw bra brb brd brn brr brs brw bsa bsb bsd bsn bsr bss bsw bwa bwb bwd bwr bws daa dab dad dan dar das daw dba dbb dbd dbn dbr dbs dda ddb ddd ddn ddr dds ddw dna dnb dnd dnn dnr dns dnw dra drb drd drn drr drs drw dsa dsb dsd dsn dsr dss dsw dwa dwb dwn dwr dws dww naa nab nad nan nar nas naw nba nbb nbd nbn nbr nbs nbw nda ndb ndd ndn ndr nds nna nnb nnn nns nnw nra nrb nrd nrn nrr nrs nrw nsa nsb nsd nsn nsr nss nsw nwa nwb nwd nwn nwr nws ra- raa rab rad ran rar ras raw rba rbb rbd rbn rbr rbs rbw rda rdb rdd rdn rdr rds rna rnb rnd rnn rnr rns rnw rra rrb rrd rrn rrr rrs rsa rsb rsd rsn rsr rss rsw rwa rwb rwd rwr rws saa sab sad san sar sas saw sba sbb sbd sbn sbr sbs sbw sda sdb sdd sdn sdr sds sdw sna snb snd snn snr sns snw sr- sra srb srd srn srr srs srw ss- ssa ssb ssd ssn ssr sss ssw swa swb swd swn swr sws waa wab wad wan war was waw wba wbb wbd wbn wbr wbs wbw wda wdb wdr wds wn- wna wnd wnn wns wnw wr- wra wrd wrn wrr wrs wrw wsa wsb wsd wsn wsr wss wsw wwa wwd wwn www