preferred_name: cleavage of bicistronic rRNA transcript (SSU-rRNA, LSU-rRNA)
preferred_name_lc: cleavage of bicistronic rrna transcript (ssu-rrna, lsu-rrna)
label: cleavage of bicistronic rRNA transcript (SSU-rRNA, LSU-rRNA)
label_lc: cleavage of bicistronic rrna transcript (ssu-rrna, lsu-rrna)