A history can be constituted-of-or-filled-with (water pollution).Logical formLearned from3 sentences. Indoor (air pollution) can be from (household energy use).Logical formLearned from3 sentences. A spring may undergo pollution.Logical formLearned from3 sentences. Compliance can be with (pollution laws).Logical formLearned from3 sentences. Pollution can be on roads.Logical formLearned from3 sentences. (Water pollution) may have some causes.Logical formLearned from3 sentences. (Pollution controls) can be substandard.Logical formLearned from3 sentences. A watercourse may undergo pollution.Logical formLearned from3 sentences. Environmental concerns can be about (air pollution).Logical formLearned from3 sentences. (Forest destruction) may cause (acid pollution) of rivers.Logical formLearned from3 sentences. (Pollution control) may undergo an implementation.Logical formLearned from3 sentences. Pollution may destroy.Logical formLearned from3 sentences. Pollution may be produced by industry.Logical formLearned from3 sentences. (Pollution levels) can be in a world-city.Logical formLearned from3 sentences. (Pollution impacts) can be on communities.Logical formLearned from3 sentences.