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