-aaa- aaaoc aabaa aabba aacbc abaab ababa abaca abaco abana abanc abann abano abaon abbac abban abcan abccc aboab abobo abona abono aboon acaca acacb acana anaba anaco anana anban ancon annan anoba anona anono anoon baban baboo bacab bacao bacca bacco banan banba banca banco banna banon bo-bo boaco boann boano bobac boban boboc bocac bocao bocca bocna bocoa bocon bonab bonan bonao bonon booba booco c-a-c ca-ca caaan caaba caano caban cabob caboc cabon cacao caco- cacoa canan canao canna canoa canon canoo caoba ccccc cnnnn co-bo co-co coana coban cocao cocc- cocco cocoa cocon conan conca conco conna cono- conob conon cooba naban nabao nabba naboa nabob naboo nacaa nacac nacba naccc nacna nanan nanao nann- nanna nanno nano- nanoa nanoc nanon nbaon nnooo no-no noboa nobob nocab nocan nona- nonac nonan nonna nonno o-bon obaba ocana onabc onano onaon onco- onnbc onoba onoon ooooo