preferred_name: endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
preferred_name_lc: endonucleolytic cleavage to generate mature 3'-end of ssu-rrna from (ssu-rrna, 5.8s rrna, lsu-rrna)
label: endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
label_lc: endonucleolytic cleavage to generate mature 3'-end of ssu-rrna from (ssu-rrna, 5.8s rrna, lsu-rrna)