tokens: Transcriptional regulation of the pyruvate kinase erythroid-specific promoter .
folded_tokens: transcriptional regulation of the pyruvate kinase erythroid-specific promoter .
labels: B-other_name I-other_name O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O