A (playing surface) can be artificial.Logical formLearned from77 sentences. Heat can be artificial.Logical formLearned from77 sentences. A field can be artificial.Logical formLearned from76 sentences. A substance can be artificial.Logical formLearned from76 sentences. Lines can be artificial.Logical formLearned from76 sentences. Bones can be artificial.Logical formLearned from76 sentences. Limitations can be artificial.Logical formLearned from75 sentences. A source can be artificial.Logical formLearned from74 sentences. A boost can be artificial.Logical formLearned from74 sentences. A production can be artificial.Logical formLearned from74 sentences. (Life forms) can be artificial.Logical formLearned from74 sentences. Beaches can be artificial.Logical formLearned from73 sentences. Canals can be artificial.Logical formLearned from73 sentences. Artificial intelligence may undergo a development.Logical formLearned from73 sentences. A vision can be artificial.Logical formLearned from73 sentences.