tokens: The protein from E . coli specifically converted dUTP to dUMP and did not react with other dNTPs or NTPs .
folded_tokens: the protein from e . coli specifically converted dutp to dump and did not react with other dntps or ntps .
labels: O O O B-mono_cell I-mono_cell I-mono_cell O O B-nucleotide O B-nucleotide O O O O O O B-nucleotide O B-nucleotide O