a-a a-b a-i aaa aab aai aan aao aar aas aaw ab- aba abb abi abn abo abr abs abw ai- aia aib aii ain aio air ais aiw an- ana anb ani ann ano anr ans aoa aob aoi aon aoo aor aos aow ar- ara arb ari arn aro arr ars arw as- asa asb asi asn aso asr ass asw aw- awa awb awi awn awo awr aws aww baa bab bai ban bao bar bas baw bba bbb bbi bbn bbo bbr bbs bbw bi- bia bib bii bin bio bir bis biw bna bnb bni bnn bno bnr bns bnw boa bob boi bon boo bor bos bow bra brb bri brn bro brr brs brw bsa bsb bsi bsn bso bsr bss bsw bwa bwb bwi bwo bwr bws ia- iaa iab iai ian iao iar ias iaw iba ibb ibi ibn ibo ibr ibs ibw iia iib iii iin iio iir iis iiw in- ina inb ini inn ino inr ins io- ioa iob ioi ion ioo ior ios iow ir- ira irb iri irn iro irr irs is- isa isb isi isn iso isr iss isw iwa iwb iwi iwo iwr iws iww n-i naa nab nai nan nao nar nas naw nba nbb nbi nbn nbo nbr nbs nbw nia nib nii nin nio nir nis nna nnb nni nnn nno nns nnw no- noa nob noi non noo nor nos now nra nrb nri nrn nro nrr nrs nrw nsa nsb nsi nsn nso nsr nss nsw nwa nwb nwi nwn nwo nwr nws o-i oaa oab oai oan oao oar oas oaw ob- oba obb obi obn obo obr obs obw oia oib oii oin oio oir ois on- ona onb oni onn ono onr ons oo- ooa oob ooi oon ooo oor oos oow or- ora orb ori orn oro orr ors os- osa osb osi osn oso osr oss osw owa owb owi own owo ows oww ra- raa rab rai ran rao rar ras raw rba rbb rbi rbn rbo rbr rbs rbw ria rib rii rin rio rir ris rna rnb rni rnn rno rnr rns rnw roa rob roi ron roo ror ros row rra rrb rri rrn rrr rrs rsa rsb rsi rsn rso rsr rss rsw rwa rwb rwi rwr rws saa sab sai san sao sar sas saw sba sbb sbi sbn sbo sbr sbs sbw sia sib sii sin sio sir sis siw sna snb sni snn sno snr sns snw soa sob soi son soo sor sos sow sr- sra srb sri srn sro srr srs srw ss- ssa ssb ssi ssn sso ssr sss ssw swa swb swi swn swo swr sws waa wab wai wan wao war was waw wba wbb wbi wbn wbo wbr wbs wbw wia wib wii win wir wis wn- wna wnn wno wns wnw woa wob woi won woo wor wos wow wr- wra wri wrn wro wrr wrs wrw wsa wsb wsi wsn wso wsr wss wsw wwa wwi wwn wwo www