[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is naturally produced cyclic ether and monoterpenoid. Eucalyptol is an ingredient in many brands of mouthwash and cough suppressant. It controls airway mucus hypersecretion and asthma via anti-inflammatory cytokine inhibition. Eucalyptol is an effective treatment for nonpurulent rhinosinusitis. Eucalyptol reduces inflammation and pain when applied topically. It kills leukaemia cells in vitro."}, {"from": "gpt", "value": "[C][C][Branch1][P][C][C][C][C][Branch1][Ring2][O][Ring1][=Branch1][Branch1][Branch1][C][C][Ring1][#Branch1][C][C]"}]