Natural gas may burn cleaner.Logical formLearned from35 sentences. Bridges may be burnt.Logical formLearned from35 sentences. A male may burn a male.Logical formLearned from35 sentences. A wildfire may burn some acres.Logical formLearned from35 sentences. Work may be burnt.Logical formLearned from35 sentences. A fire may burn bright.Logical formLearned from35 sentences. Stuff may burn.Logical formLearned from35 sentences. A bridge may be burnt.Logical formLearned from35 sentences. Protesters may burn a flag.Logical formLearned from35 sentences. Villages may burn.Logical formLearned from35 sentences. A person may be burnt to death.Logical formLearned from35 sentences. A rig may burn.Logical formLearned from34 sentences. A female may be burnt to death.Logical formLearned from34 sentences. A person may burn a book.Logical formLearned from34 sentences. Lungs may burn.Logical formLearned from34 sentences.