a-a a-b a-q aaa aab aan aao aaq aar aaw ab- aba abb abn abo abq abr abw an- ana anb ann ano anq anr aoa aob aon aoo aor aow aqa aqn aqo aqr ar- ara arb arn aro arq arr arw aw- awa awb awn awo awr aww baa bab ban bao baq bar baw bba bbb bbn bbo bbq bbr bbw bna bnb bnn bno bnr bnw boa bob bon boo boq bor bow bqw bra brb brn bro brq brr brw bwa bwb bwo bwr naa nab nan nao nar naw nba nbb nbn nbo nbr nbw nna nnb nnn nno nnw no- noa nob non noo nor now nra nrb nrn nro nrr nrw nwa nwb nwn nwo nwr oaa oab oan oao oaq oar oaw ob- oba obb obn obo obr obw on- ona onb onn ono onr oo- ooa oob oon ooo oor oow oqb oqo or- ora orb orn oro orr owa owb own owo oww qaa qan qar qba qbq qnb qoo qor qqq qra qrb qw- qwn ra- raa rab ran rao raq rar raw rba rbb rbn rbo rbr rbw rna rnb rnn rno rnr rnw roa rob ron roo ror row rqn rqw rra rrb rrn rrq rrr rwa rwb rwr waa wab wan wao war waw wba wbb wbn wbo wbr wbw wn- wna wnn wno wnw woa wob won woo wor wow wqa wqb wqo wr- wra wrn wro wrr wrw wwa wwn wwo www