freeEnd--1b1D-GlcNAc,p(--4b1D-GlcNAc,p--4b1D-Man,p(--3a1D-Man,p)--6a1D-Man,p)--6a1L-Fuc,p}((--2b1D-GlcNAc,p--4b1D-Gal,p--?a2D-NeuAc,p)--2b1D-GlcNAc,p--??1D-GlcNAc,p)--??1D-GlcNAc,p$MONO,Und,0,0,freeEnd