Particles can be in clouds.Logical formLearned from4 sentences. (Cloud forests) may pertain-to a country.Logical formLearned from4 sentences. Clouds of dust may be seen.Logical formLearned from4 sentences. A cloud can be as a whole.Logical formLearned from4 sentences. A boundary may pertain-to a cloud.Logical formLearned from4 sentences. A mass may pertain-to a cloud.Logical formLearned from4 sentences. Steps can be in clouds.Logical formLearned from4 sentences. An effect can be on (cloud formation).Logical formLearned from4 sentences. A solar system may be formed from a cloud of dust.Logical formLearned from4 sentences. Black clouds may hang over e-mail.Logical formLearned from4 sentences. Regions may pertain-to a cloud.Logical formLearned from4 sentences. A cloud can be from an event.Logical formLearned from4 sentences. Respect can be to clouds.Logical formLearned from4 sentences. A cloud can be trapped.Logical formLearned from4 sentences. A giant molecular cloud may produce brightenings on a rim of a remnant.Logical formLearned from4 sentences.