aaaa aaab aaap aaar aaba aabb aabp aapa aara aarp aaru aaup abaa abab abag abap abar abau abb- abba abbb abbr abpa abpp abpr abra abua abug agag agap agar agau agba agga aggu agra agrp agua agur apap apar apba apbg apbr apga appa appr appu apra apua apug apup arab arag arap arar arau arba arga argb arpa arpu arr- arra arrg arrr arru arua arub arug arup auaa auga aur- aura auug baaa baar baba babb babr babu baga bagg bapa bapp bapu bar- bara barb barg barr baru bau- baug baur bbau bbbb bbga bbpr bbrg brab brag brau brrr brug brup buar buba bubb bubu buga bugg bupa bur- bura burb burg burp burr buru gaap gaar gaba gabb gabp gabr gabu gaga gagg gagu gapa gapp gapu gara garb garg garp garr gaua gaub gaup gaur gbag gbap gggg gpaa gpgp gpra gprp grab grap grau grbr grrr grua grub grug grur guaa guag guap guar guba gubb gubu guga gugb gugg gugu gura gurb gurg gurr guru paag paap paar paba pabu paga pagb pagu papa papb papg papp papr par- para parg parp parr paru paua paug paup paur pbar pbpa pgaa pgpu pgup ppap ppar ppga pppa pppp ppru ppur prag prar prau pruu puar pubu pugu pupa pupu pur- pura purb purg purp purr puru raab raag raba rabb rabu raga ragg ragu rapa rapp rara rarb raua raub raup rbbb rbbr rgba rpga rrrr ruag ruba rubb rubp rubu ruga rugg rupa rupp rura rurp ruru u-rp uaru uaua ubar ubba ubra ugab ugar ugra ugur uguu upar uppa uppp uppu upra upup urap urau urba urga urgu urra urup urur uuuu