Rolling hills may pertain-to plains.Logical formLearned from5 sentences. A hill can be tricky.Logical formLearned from5 sentences. A person may find a hill.Logical formLearned from5 sentences. A hill can be yellow.Logical formLearned from5 sentences. A city can be constituted-of-or-filled-with some hills.Logical formLearned from5 sentences. A spirit may pertain-to a hill.Logical formLearned from5 sentences. A hill can be from an apartment.Logical formLearned from5 sentences. A trip can be into hills.Logical formLearned from5 sentences. A hill may end.Logical formLearned from5 sentences. A hill can be wooded.Logical formLearned from5 sentences. A hill can be about a mile.Logical formLearned from5 sentences. Clouds may roll_in over hills.Logical formLearned from5 sentences. Hills may prevent (cell phones) from receiving signals.Logical formLearned from5 sentences. The sun may drop behind hills.Logical formLearned from5 sentences. Persons may get to a bottom of a hill.Logical formLearned from5 sentences.