aaaa aaab aaar aaba aabb aabt aaoo aara aaro aart aata aatt abaa abab abag abar abat abax abb- abba abbb abbo abbr abbt aboa abob aboo abor abot abox abra abro abta ag-o agag agao agar agat agba agbo agga agob agog agoo agot agra agro agta agtr agxt aoba aora aorb aort arab arag arar arat arax arba arga argb argo aroa arob aroo aror arr- arra arrg arro arrr arrt arta arto artr artx at-t at-x ataa atab atar atat atax atgo atob ator atot atra atro atrx atta atto attr axar axat axo- axoa axto axxo ba-x baaa baar baat baba babb babo babr baga bagg bago bagt bar- bara barb barg baro barr bart barx bata bato batt baxt bbbb bbga bbox bbrg boab boag boar boat boba bobb bobo boga bogg bogo bogt boob boog boor boot boox bor- bora borg boro borr bort bota botb boto bott boxa brab brag brao brat brax broa brob brog broo bror brot brox brrr btaa btob btor btrt bttb gaar gaba gabb gabo gabr gabt gaga gagg gago gara garb garg garo garr gart gata gato gatr gatt gatx gbag gbbo ggbt gggg goar goat goba gobo goga gogo goog goor goot gora gorb gorg goro gorr gort gota goto gott grab grat grbr grob grog groo gror grot grrr gtaa gtbr gtta oara obba obbo obor obot obox obra obro ogar ogb ogba ogoa ogog ogra ogro ooaa ooba oooo oora oort ootb orab orao orar orat orba orbb orbo orga orgo oro- oror orot orra orro orta orto otar oto- otog otoo otor otra otro otta otto oxa- oxo- oxox oxxo raab raag raat raba rabb rabo raga ragg rago raob rara rarb raro rata rato ratt raxa rbbb rbbr rgba rgtr roab roag roar roat rob- roba robb robo robt roga rogg rogo roob roog roor root roox rora roro rort rota rotg roto rotr rott roxa roxo rrat rrrr taa- taag taar taat taba tabb tabo taga tagg tago taoa taor tara tarb targ taro tarr tart tata tatb tato tatr tatt tax- taxa taxo taxt tbar tbox tbrb tbta toab toat toba tobo tobt toga togo togr togt tooa toor toot tora torg toro torr tort torx tota toto totr tott tox- toxa toxo toxt traa trab trag trao trat trax troa trog troo trot trox trra trtr ttab ttbb tttt txaa txga txtr xaar xaga xago xara xbar xbox xbra xorg xoro xoxo xtar xtra xtro xxxo xxxx