beta-D-glucosyl-(1->4)-D-mannopyranose => D-cellobiose
beta-d-glucosyl-(1->4)-d-mannopyranose => d-cellobiose
beta-D-glucosyl-(1->4)-D-mannopyranose => D-cellobiose
beta-d-glucosyl-(1->4)-d-mannopyranose => d-cellobiose