preferred_name: a sphingoid base + hexadecanoyl-CoA => an N-hexadecanoyl-sphingoid base + CoA + H(+)
preferred_name_lc: a sphingoid base + hexadecanoyl-coa => an n-hexadecanoyl-sphingoid base + coa + h(+)
label: a sphingoid base + hexadecanoyl-CoA => an N-hexadecanoyl-sphingoid base + CoA + H(+)
label_lc: a sphingoid base + hexadecanoyl-coa => an n-hexadecanoyl-sphingoid base + coa + h(+)