tokens: In B lymphoid cells , deltaspi-B and spi-B mRNAs were present simultaneously in a ratio of around 10% .
folded_tokens: in b lymphoid cells , deltaspi-b and spi-b mrnas were present simultaneously in a ratio of around 10% .
labels: O B-cell_type I-cell_type I-cell_type O O O O O O O O O O O O O O O