Synthetic chemicals can be toxic.Logical formLearned from5 sentences. Synthetic chemicals may be knowned.Logical formLearned from5 sentences. An (index future) can be synthetic.Logical formLearned from5 sentences. A sound can be synthetic.Logical formLearned from5 sentences. A (computer voice) can be synthetic.Logical formLearned from5 sentences. A synthetic material may undergo a birthday.Logical formLearned from5 sentences. A color can be synthetic.Logical formLearned from5 sentences. Cues can be synthetic.Logical formLearned from5 sentences. Dopamines can be synthetic.Logical formLearned from5 sentences. A (material gortex) can be synthetic.Logical formLearned from5 sentences. A methylene-dioxy-methamphetamine can be synthetic.Logical formLearned from5 sentences. A leptin can be synthetic.Logical formLearned from5 sentences. Nettings can be synthetic.Logical formLearned from5 sentences. Tents may be covered with synthetic material.Logical formLearned from5 sentences. A (steroid derivative) can be synthetic.Logical formLearned from5 sentences.