An exchange can be fertile.Logical formLearned from16 sentences. Animals can be fertile.Logical formLearned from16 sentences. Valleys can be fertile.Logical formLearned from16 sentences. (Rice paddies) can be fertile.Logical formLearned from16 sentences. A floret can be fertile.Logical formLearned from15 sentences. A stamen can be fertile.Logical formLearned from15 sentences. Scales can be fertile.Logical formLearned from15 sentences. A black earth can be fertile.Logical formLearned from15 sentences. Oaes can be fertile.Logical formLearned from15 sentences. A fish can be fertile.Logical formLearned from15 sentences. A mother can be fertile.Logical formLearned from15 sentences. Females can be fertile.Logical formLearned from15 sentences. A top soil can be fertile.Logical formLearned from15 sentences. Bearings can be fertile.Logical formLearned from15 sentences. Places may be knowned as fertile ground.Logical formLearned from15 sentences.