tokens: In addition , several novel KRAB-containing zinc finger genes and a novel conserved sequence element were identified .
folded_tokens: in addition , several novel krab-containing zinc finger genes and a novel conserved sequence element were identified .
labels: O O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O