Clouds may pertain-to a country.Logical formLearned from6 sentences. An (ash cloud) can be dense.Logical formLearned from6 sentences. Sun may break through clouds.Logical formLearned from6 sentences. A finger of an (ash cloud) may touch on parts of a country.Logical formLearned from6 sentences. (Bank and clouds) can be constituted-of-or-filled-with gas.Logical formLearned from6 sentences. (Bank and clouds) may pertain-to a world-city.Logical formLearned from6 sentences. Some persons can be dead in (bank and clouds) of gas.Logical formLearned from6 sentences. A start to a spring may spoil by a spread of an (ash cloud).Logical formLearned from6 sentences. An (ash cloud) may spew from a volcano.Logical formLearned from6 sentences. An (ash cloud) may impair economic activity on a scale.Logical formLearned from6 sentences. An (ash cloud) can be from an icelandic volcano.Logical formLearned from6 sentences. An (ash cloud) may spew by an icelandic volcano.Logical formLearned from6 sentences. An (ash cloud) may disrupt operations.Logical formLearned from6 sentences. A cloud can be constituted-of-or-filled-with colored smoke.Logical formLearned from6 sentences. Clouds can be in a morning.Logical formLearned from6 sentences.