preferred_name: substance P + H2O => substance P(1-8) + Gly-L-Leu-L-Met-NH2
preferred_name_lc: substance p + h2o => substance p(1-8) + gly-l-leu-l-met-nh2
label: substance P + H2O => substance P(1-8) + Gly-L-Leu-L-Met-NH2
label_lc: substance p + h2o => substance p(1-8) + gly-l-leu-l-met-nh2