Provisions may pertain-to toxic substances.Logical formLearned from2 sentences. (Chemical fertilizers) can be toxic.Logical formLearned from2 sentences. Settings can be toxic.Logical formLearned from2 sentences. Toxic wastes may undergo a burial.Logical formLearned from2 sentences. Urea can be toxic.Logical formLearned from2 sentences. Toxic substances may undergo an avoidance.Logical formLearned from2 sentences. A biochemical can be toxic to some plants.Logical formLearned from2 sentences. Derivatives can be toxic.Logical formLearned from2 sentences. Ammonia can be toxic to a body.Logical formLearned from2 sentences. Saponins can be toxic.Logical formLearned from2 sentences. (Chemical experts) can be toxic.Logical formLearned from2 sentences. A reason can be toxic.Logical formLearned from2 sentences. (Gas concentrations) can be toxic.Logical formLearned from2 sentences. Toxic substances can be chemicals.Logical formLearned from2 sentences. A (metal monitor) can be toxic.Logical formLearned from2 sentences.