preferred_name: ornithine => putrescine + CO2 (Saccharomyces cerevisiae)
preferred_name_lc: ornithine => putrescine + co2 (saccharomyces cerevisiae)
label: ornithine => putrescine + CO2 (Saccharomyces cerevisiae)
label_lc: ornithine => putrescine + co2 (saccharomyces cerevisiae)