a-a a-b a-t aaa aab aae aak aao aat aaw ab- aba abb abe abk abo abt abw aea aeb aee aek aeo aet aew aka akb ake akk ako akw aoa aob aoe aok aoo aot aow at- ata atb ate ato att atw aw- awa awb awe awk awo awt aww baa bab bae bak bao bat baw bba bbb bbe bbk bbo bbt bbw be- bea beb bee bek beo bet bew bka bkb bke bkk bko bkt bkw boa bob boe bok boo bot bow bta btb bte btk bto btt btw bwa bwb bwk bwo eaa eab eae eak eao eat eaw eba ebb ebe ebk ebo ebt ebw eea eeb eee eek eeo eet eew eka ekb eke eko ekt eo- eoa eob eoe eok eoo eot eow eta etb ete etk eto ett etw ewa ewb ewe ewk ewo ewt eww k-t ka- kaa kab kae kak kao kat kaw kba kbb kbe kbk kbo kbw ke- kea keb kee kek keo ket kew kkb kke kkk kkt koa kob koe kok koo kot kow kta ktb kte ktk kto ktt ktw kw- kwa kwk kwo kwt kww oaa oab oae oak oao oat oaw ob- oba obb obe obk obo obt obw oea oeb oee oeo oet oka okb oke okk oko okw oo- ooa oob ook ooo oot oow ot- ota otb ote otk oto ott otw owa owb owe owk owo owt oww taa tab tae tak tao tat taw tba tbb tbe tbk tbo tbt te- tea teb tee tek teo tet tew tka tkb tke tkk tko tkt tkw to- toa tob toe tok too tot tow tta ttb tte ttk tto ttt ttw twa twb twe two twt tww waa wab wae wak wao wat waw wba wbb wbe wbo wbt wbw wea web wee wek weo wet wew wka wkb wke wko wkt wkw woa wob woe wok woo wot wow wta wtb wto wtt wtw wwa wwe wwo wwt www