But, when added AntigenB to AntibodyB into a hole G1-12 Galactose then diluted. Inhibition was very good, whether concentration of Galactose much or low because Galactose is a sugar molecules on the end carbohydrate chain of on Antigen B, so when added Antibody B in Galactose already has a handle on Antibody B before making the addition of Antigen B into a Galactose is so, no precipitation.