[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a member of guanidines, a carboxamidine, a member of hydrazines and a member of indoles. It has a role as a serotonergic agonist and a gastrointestinal drug."}, {"from": "gpt", "value": "[C][C][C][C][C][N][=C][Branch1][C][N][N][/N][=C][/C][=C][N][C][=C][Ring1][Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C]"}]