label: N-(hexadecanoyl)-sphing-4-enine-1-phosphocholine + H2O <=> N-hexadecanoylsphing-4-enine + phosphocholine + H(+)
label_lc: n-(hexadecanoyl)-sphing-4-enine-1-phosphocholine + h2o <=> n-hexadecanoylsphing-4-enine + phosphocholine + h(+)