A boundary may pertain-to hills.Logical formLearned from4 sentences. A hill can be attractive.Logical formLearned from4 sentences. Work can be on a hill.Logical formLearned from4 sentences. A series can be constituted-of-or-filled-with (hill forts).Logical formLearned from4 sentences. A park may be located in hills.Logical formLearned from4 sentences. A (hill country) can be populated.Logical formLearned from4 sentences. Base may pertain-to a hill.Logical formLearned from4 sentences. Origins can be in (hill country).Logical formLearned from4 sentences. Hills can be constituted-of-or-filled-with origin.Logical formLearned from4 sentences. Habitat can be in hills.Logical formLearned from4 sentences. A hill can be on a right.Logical formLearned from4 sentences. A local church may be built on a hill to the north of a settlement.Logical formLearned from4 sentences. A hill may drop.Logical formLearned from4 sentences. Outcrops may pertain-to hills.Logical formLearned from4 sentences. Hills may surround a house.Logical formLearned from4 sentences.