An (ash cloud) may approach.Logical formLearned from5 sentences. A cloud of volcanic ash may spread across a continent.Logical formLearned from5 sentences. A volcano may spew clouds of ash.Logical formLearned from5 sentences. An (ash cloud) can be thick.Logical formLearned from5 sentences. A cloud may hang over a market.Logical formLearned from5 sentences. A cloud can be over (corruption allegations).Logical formLearned from5 sentences. Clouds can be with communiques.Logical formLearned from5 sentences. Clouds may block a view.Logical formLearned from5 sentences. A cloud can be over efforts.Logical formLearned from5 sentences. Clouds can be constituted-of-or-filled-with (space debris).Logical formLearned from5 sentences. Persons may throw a dark cloud to a person.Logical formLearned from5 sentences. A person may throw a dark cloud.Logical formLearned from5 sentences. A cloud of leaflets may warn residents.Logical formLearned from5 sentences. A direction of a cloud may depend on a wind.Logical formLearned from5 sentences. A plane may fly over a cloud of ash.Logical formLearned from5 sentences.