Rolling hills can be open.Logical formLearned from13 sentences. A male may reach a top of a hill.Logical formLearned from13 sentences. A house may be built on a hill.Logical formLearned from13 sentences. Life can be hills.Logical formLearned from13 sentences. Persons may sit on a hill.Logical formLearned from13 sentences. A person may run_up a hill.Logical formLearned from13 sentences. Persons may run_away to hills.Logical formLearned from13 sentences. A hill may undergo a start.Logical formLearned from13 sentences. A light can be on a hill.Logical formLearned from13 sentences. Rolling hills may pertain-to an area.Logical formLearned from13 sentences. A lightning may hit a hill.Logical formLearned from13 sentences. A person may come_down a hill.Logical formLearned from13 sentences. A backdrop can be constituted-of-or-filled-with rolling hills.Logical formLearned from13 sentences. A hill may pertain-to a beginner.Logical formLearned from13 sentences. An one can be on a hill.Logical formLearned from13 sentences.