Hills can be green.Logical formLearned from69 sentences. A part may pertain-to hills.Logical formLearned from69 sentences. Hills can be low-lying.Logical formLearned from69 sentences. A city may be set on a hill.Logical formLearned from68 sentences. Hills may surround a city.Logical formLearned from67 sentences. An area can be constituted-of-or-filled-with rolling hills.Logical formLearned from66 sentences. A hill can be in a world-city.Logical formLearned from66 sentences. A hill can be bare.Logical formLearned from66 sentences. Hills may overlook a city.Logical formLearned from66 sentences. Hills may overlook a world-city.Logical formLearned from66 sentences. A hill can be icy.Logical formLearned from66 sentences. Hills can be around a city.Logical formLearned from65 sentences. A hill can be fortified.Logical formLearned from65 sentences. Content may wri (hill homes) of stadium.Logical formLearned from64 sentences. Hills may surround a capital.Logical formLearned from64 sentences.