User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a polyanionic polymer obtained by deprotonation of the carboxy groups of [(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl]n; major species at pH 7.3. It is a polyanionic polymer and a carbohydrate acid anion.
Assistant: This is a molecule that fits your description: C[C@@H]1O[C@@H](O[C@@H]2[C@H](O)[C@@H](O)[C@@H](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#}
(2S,3R,4R,5R,6S)-4,5,6-trihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxane-2-carboxylate
The molecule is a polyanionic polymer obtained by deprotonation of the carboxy groups of [(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl]n; major species at pH 7.3. It is a polyanionic polymer and a carbohydrate acid anion.