A (forest fire) may be caused by lightning.Logical formLearned from4 sentences. A (forest area) may pertain-to a region.Logical formLearned from4 sentences. (Forest fires) may be put_outed.Logical formLearned from4 sentences. Some ha can be constituted-of-or-filled-with forest.Logical formLearned from4 sentences. Some percent of a (forest area) may be protected.Logical formLearned from4 sentences. Smog may be caused by (forest fires).Logical formLearned from4 sentences. A haze may come from ragging (forest fires).Logical formLearned from4 sentences. A (forest fire) can be smokeless.Logical formLearned from4 sentences. A (forest coverage) can be provincial.Logical formLearned from4 sentences. Some fires may destroy some hectares of forest.Logical formLearned from4 sentences. A (forest area) can be constituted-of-or-filled-with some has.Logical formLearned from4 sentences. (Forest cover) may decline by some percent.Logical formLearned from4 sentences. A (forest coverage rate) may stand at some percent.Logical formLearned from4 sentences. A forest can be fierce.Logical formLearned from4 sentences. (Forest areas) can be tropical.Logical formLearned from4 sentences.