preferred_name: a sphingoid base + phosphocholine + H(+) => a sphingosylphosphocholine + H2O
preferred_name_lc: a sphingoid base + phosphocholine + h(+) => a sphingosylphosphocholine + h2o
label: a sphingoid base + phosphocholine + H(+) => a sphingosylphosphocholine + H2O
label_lc: a sphingoid base + phosphocholine + h(+) => a sphingosylphosphocholine + h2o