[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][=C][C][=C][Ring1][=C]"}, {"from": "gpt", "value": "The molecule is a member of the class of phenanthrenes that is phenanthrene substituted by a methyl group at position 1. It has a role as a mutagen."}]