Ground may force chunks of rock from walls.Logical formLearned from13 sentences. Rocks may slide.Logical formLearned from13 sentences. Protesters may lob rocks.Logical formLearned from13 sentences. Roads can be with rocks.Logical formLearned from13 sentences. A world-city may throw rocks.Logical formLearned from13 sentences. (Rock bands) can be loud.Logical formLearned from13 sentences. Some officers may be injured by rocks.Logical formLearned from13 sentences. A mob may wield rocks.Logical formLearned from13 sentences. A person may respond by throwing rocks.Logical formLearned from13 sentences. A team of investigators may pelt with rocks.Logical formLearned from13 sentences. Police may pelt with rocks.Logical formLearned from13 sentences. A (rock guitarist) may pertain-to a who.Logical formLearned from13 sentences. A (rock musician) may pertain-to a country.Logical formLearned from13 sentences. Best (rock song) may pertain-to a year.Logical formLearned from13 sentences. A rock may be considered.Logical formLearned from13 sentences.