preferred_name: glycerol + a fatty acid + H(+) => a 1-acylglycerol + H2O
preferred_name_lc: glycerol + a fatty acid + h(+) => a 1-acylglycerol + h2o
label: glycerol + a fatty acid + H(+) => a 1-acylglycerol + H2O
label_lc: glycerol + a fatty acid + h(+) => a 1-acylglycerol + h2o