label: an inositol-1-phosphoceramide + a 1,2-diacyl-sn-glycerol => an N-acyl-sphingoid base + a 1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol)
label_lc: an inositol-1-phosphoceramide + a 1,2-diacyl-sn-glycerol => an n-acyl-sphingoid base + a 1,2-diacyl-sn-glycero-3-phospho-(1d-myo-inositol)