-er a-a a-b aaa aab aae aar ab- aba abb abe abr aea aeb aee aer ar- ara arb are arr baa bab bae bar bba bbb bbe bbr be- bea beb bee ber bra brb bre brr eaa eab eae ear eba ebb ebe ebr eea eeb eee eer era erb ere err ra- raa rab rae rar rba rbb rbe rbr re- rea reb ree rer rra rrb rrr

a-be aaaa aaab aaae aaar aaba aabb aaea aara aare abaa abab abae abar abb- abba abbb abbe abbr abee aber abra aeer aer- aera arab arae arar arba arbe area aree arr- arra arre arrr baaa baar baba babb babe babr baer bar- bara barb bare barr bbbb bbeb bear beba bebb bebe beeb beer bera bere berr brab brae brea breb bree brer brrr eaba eara earb eare ebba ebbr eber eeea eeee eera erba erbb erbe ereb erer erra erre raab raba rabb rabe raer rara rarb rare rbbb rbbr rea- reae rear reba rebb rebe reeb rera rere rrrr

-aaa- aaaee aabaa aabba aabra abaab ababa ababe abaer abara abare abbar abear abeba abebe abeer abera abere aberr abrar aeaea aebbe ar-ab arab- araba arabe araea arara arare arbab arbar arbee arber arbre areae arear arere arrea baabe babar babee baber babra baraa barab barar barba barbe barea barer barra barre bbbee bbear be-er beara beare bebar beber bebra beebe berar berba berbe berea berra berre breba breer brera brere brrar brrrr earar ebara ebber eeeee erbaa erbbe erber erear erere ra-ra raaba raabe rabab rabba rabbe rarae rareb raree rarer rear- rebab rebar rebbe reber rebra reere rere- reree

aaaaba abaera abeere aberra abrera arbaer arbra areare arraba arrear arrere baabaa baabar bababe babare babbar barara barbae barbar barbee barber barbra barbre barera barrea barrer bbbbbb bearer beebea beebee beraba berare berbar berbee berber berere berrer breare breere eebree erbare erbree errare errea rababa re-bar rearea rearer rebear

arabber arearea arearer arreare baabarr barabra barbara barbera barrera barrere bbbbbbb berbara berbera berbere

bar-abba barabara barbarea barebear bbbbbbbb berebere brerbear rabarber rabebaer reararea

abarbarea baabaabaa beebeebee rebarbere

arab-berber

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb