a-ii aaaa aaab aaad aaai aaap aaar aaba aabb aabd aabi aabp aada aadi aaib aaii aapa aapi aara aard aari aarp abaa abab abad abai abap abar abb- abba abbb abbi abbr abda abdi abia abib abid abir abpa abpd abpi abpp abpr abra abri adaa adab adad adai adap adar adba adbi adda addd addi addr adia adib adip adir adp- adra aiai aiba aida aidb aidi aidr aiia aiib aiid aiir aipa aipi aira aird airi airp apai apap apar apba apbr apda apdd api- apia apid apip appa appd appr apra apri arab arad arai arap arar arba arbi arda ardi aria arib arid arii arip arpa arpi arr- arra arri arrr ba-i baaa baad baar baba babb babi babr bada badb badd badi badr baia baib baid bair bapa bapi bapp bar- bara barb bard bari barr bbad bbbb bbdd bbpr bd-r bdii biad biap biar biba bibb bibi bida bidi bidr bipa bipp bira birb bird biri birr bpai bpda bprd brab brad brai brda bria brid brrr daab daad daap daar daba dabb dabp dada dadi daia daid dair dapa dapi dapp dara darb dard dari darp darr dbar dbpd dddd dia- diab diad diap diar diba dibb dibp dida didi diii dipa dipp dira dird dirr dpaa dppa draa drab drad drap drar drba drda drib drip drra iaaa iaai iaap iaba iadb iaia iapa iapp iara ibad ibar ibia ibid ibra ibrd ibri idad idar idda idia idid idir idra iida iiii iipa iira ipad ipba ipdi ipid ippa ippr ipri irad irai irap irar irbp irda irdp iri- iria irid irip irpa irra irri paap paar paba pada padd padi paia paib paid paip pair papa papb papi papp papr par- para pard pari parp parr pbar pbpa pdpa pdpr piai pibb pibi pida piia piip pipa pipi pipp pira piri pirr ppad ppap ppar ppib ppid pppa pppd pppp prad prai prar pri- pria prid prii prpd prrd prri raab raad raba rabb rabi rada radd radr raia raid raii raip rair rapa rapd rapi rapp rara rarb rari rbbb rbbr rdap rdbp riaa riab riad riai rib- riba rida ridd ridi riia ripa ripd ripi ripp ripr riri rpdp rpii rrad rrrr