bbbbbb bobrok boccob bocock bodock bodoco bokoro booboo borbor borkou boroko bororo boubou boudou boukou bourou brocco brocor brokkr broock brouck brubru bububu bucco- budruk bukkur bukuru burbur burdur buruku cobbob cocco- cococo coocoo coodoo cookoo corour coruco coruro courbu courr- crocco cruro- cuckoo cucurb curour curror cururo d-book dobroc docock dododo dok-do dokuro dorbod dorobo dorood dororo doudou dourou dubdub duboko durbok k-rock kobodo koboko kodkod kodoku koduru kokoku kokoro kokubo koodoo kookoo korkor kororo korubo koruru koubou koudou koukou kouoro kourou kuduro kuduru kukoc kukurd kurdcu kurkcu kuroko kururu occour ookroo oooooo oordoo ordoru orrock orrour rococo rokkor rokuko rokuro roucou rubro- rudock rudrur ruocco udburu udukku