tokens: Previously , we and others have demonstrated that NF-kappa B regulates the NF-kappa B1 gene .
folded_tokens: previously , we and others have demonstrated that nf-kappa b regulates the nf-kappa b1 gene .
labels: O O O O O O O O B-protein_complex I-protein_complex O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O