A nature may pertain-to hills.Logical formLearned from10 sentences. Forces can be in hills.Logical formLearned from10 sentences. A hill may slope.Logical formLearned from10 sentences. A campus can be on a hill.Logical formLearned from10 sentences. A town may be located on a hill.Logical formLearned from10 sentences. A landscape may pertain-to hills.Logical formLearned from10 sentences. Hills can be constituted-of-or-filled-with ice.Logical formLearned from10 sentences. Some hills may be located within confines of a city.Logical formLearned from10 sentences. A person may have hills.Logical formLearned from10 sentences. A hill can be constituted-of-or-filled-with grass.Logical formLearned from10 sentences. Persons may live in hills.Logical formLearned from10 sentences. A (hill slope) can be steep.Logical formLearned from10 sentences. Hills can be wooded.Logical formLearned from10 sentences. A (hill country) can be steep.Logical formLearned from10 sentences. Members may pertain-to (hill tribes).Logical formLearned from10 sentences.