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][=Branch1][C][=O][O][C@H1][Branch1][N][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@@H1][C@@H1][Branch2][Ring2][#Branch1][N][C][=Branch1][C][=O][C][C@@H1][Branch1][N][C][C][C][C][C][C][C][C][C][C][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch2][=Branch1][Branch2][O][C][C@H1][O][C@H1][Branch1][#Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][C@H1][Branch2][Ring1][=Branch1][N][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch2][Ring1][=Branch1][O][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Ring2][Ring2][=N][O][O][C@H1][Branch3][Ring1][Ring2][=Branch1][C][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@@H1][Branch2][Ring1][#C][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][O][Ring1][#C][C@@H1][Branch2][S][Branch2][O][C@H1][O][C@H1][Branch2][Ring1][Ring1][C@H1][Branch1][Ring1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][C][N][C@@H1][Branch2][Ring1][Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][O][C@H1][Branch2][N][=C][O][C@H1][O][C@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][O][Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch2][#Branch1][Branch2][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Branch1][=C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Ring2][=Branch2][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][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][C@H1][Ring2][Ring1][=C][O][C@H1][Ring2][Ring2][=Branch2][N][C][Branch1][C][C][=O][C@H1][Branch2][Ring2][=Branch2][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][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][C@H1][Ring2][=Branch1][O][O][C@@H1][Ring2][#Branch1][Branch2][O][C@@H1][Ring2][=Branch2][Branch2][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][O][Ring2][O][#Branch1][C@H1][Ring2][S][#C][O][P][=Branch1][C][=O][Branch1][C][O][O]

The molecule is a lipid A derivative in which an alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->3)-beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->3)-L-alpha-D-Hep-(1->3)-[beta-D-Glc-(1->4)]-L-alpha-D-Hep6PEtn branched decasaccharide is linked (1->5) to a lipid A component containing four C14 and two C16 fatty acyl chains. Reported as a proposed lipooligosaccharide outer core structure of Campylobacter jejuni strains (CO016 and GC105) isolated from patients with Guillain-Barre syndrome (GBS) who had anti-GM1b antibodies, but neither anti-GM1 nor anti-GD1a antibodies (PMID:25867522).

SMILES: CCCCCCCCCCCCCCCC(=O)OC(CCCCCCCCCCC)CC(=O)OC1C(NC(=O)CC(CCCCCCCCCCC)OC(=O)CCCCCCCCCCCCC)C(OCC2OC(OP(=O)(O)O)C(NC(=O)CC(O)CCCCCCCCCCC)C(OC(=O)CC(O)CCCCCCCCCCC)C2O)OC(COC2(C(=O)O)CC(OC3(C(=O)O)CC(O)C(O)C(C(O)CO)O3)C(OC3OC(C(CO)OP(=O)(O)OCCCN)C(OC4OC(CO)C(O)C(O)C4O)C(OC4OC(C(O)CO)C(O)C(OC5OC(CO)C(OC6OC(CO)C(O)C(OC7OC(CO)C(O)C(OC8(C(=O)O)CC(O)C(NC(C)=O)C(C(O)C(O)CO)O8)C7O)C6NC(C)=O)C(OC6(C(=O)O)CC(O)C(NC(C)=O)C(C(O)C(O)CO)O6)C5O)C4O)C3O)C(C(O)CO)O2)C1OP(=O)(O)O