a-a a-b aaa aab aae aag aak aao aaw ab- aba abb abe abg abk abo abw aea aeb aee aeg aek aeo aew ag- aga agb age agg agk ago agw aka akb ake akg akk ako akw aoa aob aoe aog aok aoo aow aw- awa awb awe awg awk awo aww baa bab bae bag bak bao baw bba bbb bbe bbg bbk bbo bbw be- bea beb bee beg bek beo bew bga bgb bge bgg bgk bgo bgw bka bkb bke bkg bkk bko bkw boa bob boe bog bok boo bow bwa bwb bwg bwk bwo eaa eab eae eag eak eao eaw eba ebb ebe ebg ebk ebo ebw eea eeb eee eeg eek eeo eew ega egb ege egg ego egw eka ekb eke ekg eko eo- eoa eob eoe eog eok eoo eow ewa ewb ewe ewk ewo eww gaa gab gae gag gak gao gaw gba gbe gbg gbk gbo gbw ge- gea geb gee geg gek geo gew gga ggb ggg ggo ggw gka gkb gko goa gob goe gog gok goo gow gwa gwb gwe gwg gwk ka- kaa kab kae kag kak kao kaw kba kbb kbe kbk kbo kbw ke- kea keb kee keg kek keo kew kga kgb kgo kgw kkb kke kkk koa kob koe kog kok koo kow kw- kwa kwg kwk kwo kww oaa oab oae oag oak oao oaw ob- oba obb obe obg obk obo obw oea oeb oee oeg oeo oga oge ogg ogo oka okb oke okg okk oko okw oo- ooa oob oog ook ooo oow owa owb owe owk owo oww waa wab wae wag wak wao waw wba wbb wbe wbg wbo wbw wea web wee weg wek weo wew wga wgb wgo wgw wka wkb wke wkg wko wkw woa wob woe wog wok woo wow wwa wwe wwo www