[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of HIV infection in adults, children, and infants. Emtricitabine is always used in combination with other HIV medicines."}, {"from": "gpt", "value": "[C][C@H1][Branch1][#Branch2][O][C@H1][Branch1][Ring2][S][Ring1][Branch1][C][O][N][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][F]"}]