nfib nfic nfra niab niac niad niaf nian nibi nica nicc nicd nicf nici nida nidd nidi nifa nifc niff niia niir nina nind nini nira nndb nnnn nrab nrca nrdc nrfc nric nrna nrrc nrrd raab raad raaf raan raba rabb rabi rac- raca racc raci rada radc radd radr rafa rafc raff rafi raia raic raid raif raii rain rair rana ranc rand rani rann rara rarb rarf rari rbaf rbbb rbbr rcac rcaf rcbc rccb rccc rcdc rcfc rcic rcid rcnr rcrd rdac rdfa rdna rfdi rffc rfic rfid riaa riab riad riai rian rib- riba rica ricc rida ridc ridd ridi rifa riff riia riif riin rina rind rinf rinn riri rnaf rnai rnbr rndc rndf rnin rrad rrfc rrif rrna rrrr