Task: Please create a description for a molecule.
Molecule SMILES: C=CCO[C@]1(C(=O)O)C[C@@H](O)[C@@H](O)[C@@H]([C@H](O)CO[C@]2(C(=O)O)C[C@@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O2)O1
Constraint: Answer the question with complete sentences.
Result: The molecule is a disaccharide derivative consisting of two 3-deoxy-alpha-D-manno-oct-2-ulopyranonosyl units joined via an alpha-(2->8)-linkage with an O-allyl group at the anomeric centre. It has a role as an antigen.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
(2R,4R,5R,6R)-6-[(1R)-2-[(2R,4R,5R,6R)-2-carboxy-6-[(1R)-1,2-dihydroxyethyl]-4,5-dihydroxyoxan-2-yl]oxy-1-hydroxyethyl]-4,5-dihydroxy-2-prop-2-enoxyoxane-2-carboxylic acid
The molecule is a disaccharide derivative consisting of two 3-deoxy-alpha-D-manno-oct-2-ulopyranonosyl units joined via an alpha-(2->8)-linkage with an O-allyl group at the anomeric centre. It has a role as an antigen.