The world can be barren.Logical formLearned from15 sentences. A mountainside can be barren.Logical formLearned from15 sentences. A terrain can be barren.Logical formLearned from15 sentences. (Battery cages) can be barren.Logical formLearned from15 sentences. A swath can be barren.Logical formLearned from15 sentences. A pitch can be barren.Logical formLearned from15 sentences. Conditions can be barren.Logical formLearned from14 sentences. Tundras can be barren.Logical formLearned from14 sentences. A .. can be barren.Logical formLearned from14 sentences. Streets can be barren.Logical formLearned from14 sentences. A sky can be barren.Logical formLearned from14 sentences. A (farm system) can be barren.Logical formLearned from14 sentences. A ridge can be barren.Logical formLearned from14 sentences. A fig-tree can be barren.Logical formLearned from14 sentences. A winter can be barren.Logical formLearned from14 sentences.