tokens: The J delta 1 segment was correctly spliced to C delta ; in addition the four C delta exons were found to be already assembled .
folded_tokens: the j delta 1 segment was correctly spliced to c delta ; in addition the four c delta exons were found to be already assembled .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O O O O