A connectivity can be chemical.Logical formLearned from9 sentences. A challenge can be chemical.Logical formLearned from9 sentences. An isolation can be chemical.Logical formLearned from9 sentences. A (testing program) can be chemical.Logical formLearned from9 sentences. Pollutants can be chemical.Logical formLearned from9 sentences. Sourcings can be chemical.Logical formLearned from9 sentences. Surroundings can be chemical.Logical formLearned from9 sentences. A cascade can be constituted-of-or-filled-with chemical reactions.Logical formLearned from9 sentences. A chemical composition may pertain-to rocks.Logical formLearned from9 sentences. A deterrent can be chemical.Logical formLearned from9 sentences. An (emulsion breaking) can be chemical.Logical formLearned from9 sentences. A foundation can be chemical.Logical formLearned from9 sentences. Neurotransmitters can be chemical.Logical formLearned from9 sentences. Mixtures can be chemical.Logical formLearned from9 sentences. Supplies can be chemical.Logical formLearned from9 sentences.