-aaa- aaaoc aaarc aabaa aabba aabra aacbc abaab ababa abaca abaco abara abbac abbar abccc aboab abobo abora aborc abrac abrar acaca acacb acar- acara accra acrab acro- acrob ar-ab ara-c arab- araba arabo araca araco arara arbab arbar arbor arcoa arcor aroab aroar aroba aroor arora babar baboo babra bacab bacao bacar bacca bacco baoro baraa barab barac barao barar barba barca baro- baroa baroo baror barra barro bo-bo boaco boaro bobac bobar boboc bobr bocac bocao bocar bocca bocoa bocor booba booco boora borac borba borbo borca boro- boroa boroo borra borro braca bracc braco brobo broca brora brrar brrrr c-a-c c-cor ca-ca caaba cabob caboc cabra cacao caco- cacoa caoba caraa carab carac carb- carbo caroa carob carra carro ccccc co-bo co-co coarb coarc cobar cobra cocao cocc- cocco cocoa cooba corba corbo corca coro- corra craba crabb craco croco o-r-b oarac oaror obaba obara obora oboro obrab ocara ocaro occar occra ocora ocr-a ocr-b ooooo oraba orara orobo oroco orrca r-co- ra-ra raaba raaor rabab rabac rabba rabor rccar ro-ro robab robar robbo robo- robor rocar rocca rocco rocoa rocor rooba rorra