User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a digalacturonic acid in which an alpha-D-galactopyranuronic acid unit is joined to a D-galactopyranuronic acid unit via an alpha-(1->4)-linkage. It is a conjugate acid of an alpha-D-galacturonosyl-(1->4)-D-galacturonate(2-).
Assistant: This is a molecule that fits your description: O=C(O)[C@H]1O[C@H](O[C@@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2C(=O)O)[C@H](O)[C@@H](O)[C@H]1O
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
O=C(O)[C@H]1O[C@H](O[C@@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2C(=O)O)[C@H](O)[C@@H](O)[C@H]1O
(2S,3R,4S,5R,6S)-6-[(2S,3R,4R,5R)-2-carboxy-4,5,6-trihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylicacid
The molecule is a digalacturonic acid in which an alpha-D-galactopyranuronic acid unit is joined to a D-galactopyranuronic acid unit via an alpha-(1->4)-linkage. It is a conjugate acid of an alpha-D-galacturonosyl-(1->4)-D-galacturonate(2-).