(Insemination techniques) can be artificial.Logical formLearned from41 sentences. An economy can be artificial.Logical formLearned from41 sentences. An artificial heart may undergo a development.Logical formLearned from41 sentences. An opening can be artificial.Logical formLearned from41 sentences. (Football pitches) can be artificial.Logical formLearned from40 sentences. Sounds can be artificial.Logical formLearned from40 sentences. Scents can be artificial.Logical formLearned from40 sentences. A forest can be artificial.Logical formLearned from40 sentences. Exposure can be to artificial light.Logical formLearned from40 sentences. A paradise can be artificial.Logical formLearned from40 sentences. Ways can be artificial.Logical formLearned from40 sentences. Discs can be artificial.Logical formLearned from40 sentences. Tissues can be artificial.Logical formLearned from40 sentences. Needs can be artificial.Logical formLearned from39 sentences. Walls can be artificial.Logical formLearned from39 sentences.