[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a cyclic amine whose five-membered ring contains four carbon atoms and one nitrogen atom; the parent compound of the pyrrolidine family. It is a saturated organic heteromonocyclic parent, a member of pyrrolidines and an azacycloalkane. It is a conjugate base of a pyrrolidinium ion."}, {"from": "gpt", "value": "[C][C][C][N][C][Ring1][Branch1]"}]