(Pollution laws) may undergo an enforcement.Logical formLearned from11 sentences. (Air pollution regulations) may pertain-to a us-state.Logical formLearned from11 sentences. Pollution can be in the world.Logical formLearned from11 sentences. Pollution can be from a factory.Logical formLearned from11 sentences. A campaign can be against spiritual pollution.Logical formLearned from11 sentences. Some aspects can be constituted-of-or-filled-with (air pollution).Logical formLearned from11 sentences. (Air pollution) may play a role.Logical formLearned from11 sentences. Lakes may undergo pollution.Logical formLearned from11 sentences. (Air pollution) may undergo emissions.Logical formLearned from11 sentences. (Air pollution) can be in a continental-region.Logical formLearned from11 sentences. (Pollution prevention techniques) may undergo a use.Logical formLearned from11 sentences. A (particle pollution) can be short-term.Logical formLearned from11 sentences. Pollution can be from industries.Logical formLearned from11 sentences. Levels can be constituted-of-or-filled-with (water pollution).Logical formLearned from11 sentences. Pollution can be in lakes.Logical formLearned from11 sentences.