tokens: We describe an enhancer site in the third intron of tumor necrosis factor alpha ( TNF-alpha ) .
folded_tokens: we describe an enhancer site in the third intron of tumor necrosis factor alpha ( tnf-alpha ) .
labels: O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-tissue O O O O B-protein_molecule O O