a-a aaa aad aao aap aaw ad- ada add ado adp adw aoa aod aoo aop aow ap- apa apd apo app apw aw- awa awd awo awp aww daa dad dao dap daw dda ddd ddo ddp ddw doa dod doo dop dow dpa dpd dpo dpp dpw dwa dwo dwp dww oaa oad oao oap oaw oda odd odo odp oo- ooa ood ooo oop oow op- opa opd opo opp opw owa owd owo owp oww p-p paa pad pao pap paw pda pdd pdo pdp poa pod poo pop pow ppa ppd ppo ppp ppw pwa pwd pwo pwp waa wad wao wap waw wda wdp woa wod woo wop wow wpa wpd wpo wpp wwa wwd wwo wwp www