a-a a-b a-i aaa aab aad aai aaw ab- aba abb abd abi abw ad- ada adb add adi adw ai- aia aib aid aii aiw aw- awa awb awd awi aww baa bab bad bai baw bba bbb bbd bbi bbw bda bdb bdd bdi bdw bi- bia bib bid bii biw bwa bwb bwd bwi daa dab dad dai daw dba dbb dbd dbi dda ddb ddd ddi ddw di- dia dib did dii diw dwa dwb dwi dww i-d ia- iaa iab iad iai iaw iba ibb ibd ibi ibw ida idb idd idi idw iia iib iid iii iiw iwa iwb iwd iwi iww waa wab wad wai waw wba wbb wbd wbi wbw wda wdb wdi wia wib wid wii wwa wwd wwi www