[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the tetraethyl ester of [[(3-hydroxypyridin-2-yl)amino]methylene]bisphosphonic acid"}, {"from": "gpt", "value": "[C][C][O][P][=Branch1][C][=O][Branch2][Ring1][#Branch2][C][Branch1][O][N][C][=C][C][=C][C][=C][Ring1][=Branch1][O][P][=Branch1][C][=O][Branch1][Ring2][O][C][C][O][C][C][O][C][C]"}]