preferred_name: RNA(n+1) + phosphate => RNA(n) + a ribonucleoside 5'-diphosphate
preferred_name_lc: rna(n+1) + phosphate => rna(n) + a ribonucleoside 5'-diphosphate
label: RNA(n+1) + phosphate => RNA(n) + a ribonucleoside 5'-diphosphate
label_lc: rna(n+1) + phosphate => rna(n) + a ribonucleoside 5'-diphosphate