label: (2R)-2-O-(6-phospho-alpha-D-mannosyl)-glycerate + H2O <=> alpha-D-mannose 6-phosphate + (R)-glycerate
label_lc: (2r)-2-o-(6-phospho-alpha-d-mannosyl)-glycerate + h2o <=> alpha-d-mannose 6-phosphate + (r)-glycerate