aaaa aaab aaap aaar aaba aabb aabp aaoo aapa aapo aara aaro aarp abaa abab abag abap abar abb- abba abbb abbo abbr aboa abob aboo abor abpa abpp abpr abra abro ag-o agag agao agap agar agba agbo agga agob agog agoo agra agro agrp aoba aopo aora aorb apao apap apar apba apbg apbr apga apo- apoo apop apor appa appr apra apro arab arag arap arar arba arga argb argo aroa arob aroo aror arpa arr- arra arrg arro arrr baaa baar baba babb babo babr baga bagg bago bapa bapp bar- bara barb barg baro barr bbbb bbga bbpr bbrg boab boag boar boba bobb bobo boga bogg bogo boob boog boop boor bopa bopp bor- bora borg boro borr brab brag brao broa brob brog broo bror brrr gaap gaar gaba gabb gabo gabp gabr gaga gagg gago gapa gapp gara garb garg garo garp garr gbag gbap gbbo gggg ggpo goar goba gobo goga gogo goog goop goor gopo gora gorb gorg goro gorp gorr gpaa gpgp gpra gprp grab grap grbr grob grog groo grop gror grrr oara obba obbo obor obra obro ogar ogb ogba ogoa ogog ogra ogro ooaa ooba oooo oora opap opar opo- opor oppa oppo opra orab orao orar orba orbb orbo orga orgo oro- oror orra orro paag paap paar paba paga pagb pago papa papb papg papp papr par- para parg paro parp parr pbar pbpa pgaa poar poba pobo pogg pogo poop poor pop- popa popo popp pora porb porg poro porr ppap ppar ppga ppoa pppa pppo pppp prag prao prar pro- proa prob prog proo prop raab raag raba rabb rabo raga ragg rago raob raop rapa rapp rara rarb raro rbbb rbbr rgba roab roag roap roar rob- roba robb robo roga rogg rogo roob roog roop roor ropa ropo rora roro rpga rpob rrrr