a-a a-b aaa aab aae aah aak aaw ab- aba abb abe abh abk abw aea aeb aee aeh aek aew aha ahb ahe ahh ahk ahw aka akb ake akh akk akw aw- awa awb awe awh awk aww baa bab bae bah bak baw bba bbb bbe bbh bbk bbw be- bea beb bee beh bek bew bha bhb bhe bhh bhk bhw bka bkb bke bkk bkw bwa bwb bwh bwk eaa eab eae eah eak eaw eba ebb ebe ebh ebk ebw eea eeb eee eek eew eha ehb ehe ehh eka ekb eke ekh ewa ewb ewe ewk eww haa hab hae hah hak haw hba hbb hbe hbh hbk hbw he- hea heb hee heh hek hew hha hhb hhe hhh hhk hhw hka hkb hkh hkk hkw hw- hwa hwb hwe hwk hww ka- kaa kab kae kah kak kaw kba kbb kbe kbh kbk kbw ke- kea keb kee keh kek kew kha khe khh khk kkb kke kkh kkk kw- kwa kwh kwk kww waa wab wae wah wak waw wba wbb wbe wbw wea web wee weh wek wew wh- wha whb whh whk whw wka wkb wke wkw wwa wwe www