Task: Please create a description for a molecule based on its representation.
SMILES: 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
Constraint: Answer the question with full sentences.
Result: 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.
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#}
(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.