You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C@@H1][Branch1][C][O][C@H1][Branch2][P][O][C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch2][S][Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch2][=Branch2][S][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Branch2][=Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][=Branch1][P][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Branch2][Branch1][C][C@H1][Branch1][C][O][C@@H1][Branch1][Ring1][C][O][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Branch1][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][O][Ring2][Ring1][Ring2][O][Ring2][Ring2][Branch2][C@H1][Ring2][Branch1][C][O][C@H1][Ring2][Branch1][=N][N][C][Branch1][C][C][=O][C@H1][Branch2][=Branch1][P][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Branch2][Branch1][C][C@H1][Branch1][C][O][C@@H1][Branch1][Ring1][C][O][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Branch1][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][O][Ring2][Ring1][Ring2][O][Ring2][Ring2][Branch2][C@H1][Ring2][=Branch2][Ring1][O][C@H1][Branch1][C][O][C@H1][Ring2][=Branch2][=C][O][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is an anionic ganglioside obtained by deprotonation of the neuraminosyl carboxy groups of ganglioside GQ1b (d18:1/C18:0); major species at pH 7.3. It is an alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)-beta-Gal-(1->3)-beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-Gal-(1->4)-beta-Glc-(1<->1')-Cer(d18:1)(4-) and an anionic ganglioside. It is a conjugate base of an alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)-beta-Gal-(1->3)-beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-Gal-(1->4)-beta-Glc-(1<->1')-Cer(d18:1/18:0).

SMILES: CCCCCCCCCCCCCC=CC(O)C(COC1OC(CO)C(OC2OC(CO)C(OC3OC(CO)C(O)C(OC4OC(CO)C(O)C(OC5(C(=O)[O-])CC(O)C(NC(C)=O)C(C(O)C(CO)OC6(C(=O)[O-])CC(O)C(NC(C)=O)C(C(O)C(O)CO)O6)O5)C4O)C3NC(C)=O)C(OC3(C(=O)[O-])CC(O)C(NC(C)=O)C(C(O)C(CO)OC4(C(=O)[O-])CC(O)C(NC(C)=O)C(C(O)C(O)CO)O4)O3)C2O)C(O)C1O)NC(=O)CCCCCCCCCCCCCCCCC