(Earth mounds) can be artificial.Logical formLearned from4 sentences. An engine can be artificial.Logical formLearned from4 sentences. (Chemical fertilizers) can be artificial.Logical formLearned from4 sentences. A (speed skating oval) can be artificial.Logical formLearned from4 sentences. An artificial snow may melt.Logical formLearned from4 sentences. An intelligent agent can be artificial.Logical formLearned from4 sentences. Artificial flowers may undergo a manufacture.Logical formLearned from4 sentences. A network can be constituted-of-or-filled-with artificial neurons.Logical formLearned from4 sentences. (Practice fields) can be artificial.Logical formLearned from4 sentences. Horses can be artificial.Logical formLearned from4 sentences. A wafer can be artificial.Logical formLearned from4 sentences. A (drainage channel) can be artificial.Logical formLearned from4 sentences. An artificial lighting can be harsh.Logical formLearned from4 sentences. Grass may be replaced with artificial turf.Logical formLearned from4 sentences. A man can be with an artificial leg.Logical formLearned from4 sentences.