a-a a-b a-i aaa aab aad aai aar aas aaw aax ab- aba abb abd abi abr abs abw abx ad- ada adb add adi adr ads adw adx ai- aia aib aid aii air ais aiw aix ar- ara arb ard ari arr ars arw arx as- asa asb asd asi asr ass asw asx aw- awa awb awd awi awr aws aww ax- axa axi axr axs axx baa bab bad bai bar bas baw bax bba bbb bbd bbi bbr bbs bbw bbx bda bdb bdd bdi bdr bds bdw bdx bi- bia bib bid bii bir bis biw bix bra brb brd bri brr brs brw brx bsa bsb bsd bsi bsr bss bsw bsx bwa bwb bwd bwi bwr bws bxb bxd bxi bxw bxx daa dab dad dai dar das daw dax dba dbb dbd dbi dbr dbs dbx dda ddb ddd ddi ddr dds ddw ddx di- dia dib did dii dir dis diw dix dra drb drd dri drr drs drw drx dsa dsb dsd dsi dsr dss dsw dsx dwa dwb dwi dwr dws dww dwx dxd dxi dxr dxs dxx i-d ia- iaa iab iad iai iar ias iaw iba ibb ibd ibi ibr ibs ibw ibx ida idb idd idi idr ids idw idx iia iib iid iii iir iis iiw iix ir- ira irb ird iri irr irs irx is- isa isb isd isi isr iss isw iwa iwb iwd iwi iwr iws iww ixi ra- raa rab rad rai rar ras raw rax rba rbb rbd rbi rbr rbs rbw rbx rda rdb rdd rdi rdr rds rdx ria rib rid rii rir ris rix rra rrb rrd rri rrr rrs rsa rsb rsd rsi rsr rss rsw rsx rwa rwb rwd rwi rwr rws rxr rxs saa sab sad sai sar sas saw sax sba sbb sbd sbi sbr sbs sbw sbx sda sdb sdd sdi sdr sds sdw sia sib sid sii sir sis siw six sr- sra srb srd sri srr srs srw srx ss- ssa ssb ssd ssi ssr sss ssw ssx swa swb swd swi swr sws sxi sxs waa wab wad wai war was waw wax wba wbb wbd wbi wbr wbs wbw wbx wda wdb wdi wdr wds wia wib wid wii wir wis wix wr- wra wrd wri wrr wrs wrw wrx wsa wsb wsd wsi wsr wss wsw wsx wwa wwd wwi www wxw xaa xad xar xas xbr xbx xda xdb xdi xdr xds xia xii xis xix xrd xrx xsa xsb xsi xss xwa xwd xxi xxx