[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the organosulfur heterocyclic compound that is the parent compound of the thianthrenes, a tricyclic structure comprising two benzene rings fused to the b and e sides of 1,4-dithin. It is a mancude organic heterotricyclic parent, an organosulfur heterocyclic compound and a member of thianthrenes."}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][S][C][=C][C][=C][C][=C][Ring1][=Branch1][S][Ring1][O]"}]