An (ammonia gas leak) can be in a (meat processing factory).Logical formLearned from2 sentences. Rescuers may bring an (ammonia gas leak).Logical formLearned from2 sentences. Ammonia may pollute a river.Logical formLearned from2 sentences. An (ammonia production line) can be in a company.Logical formLearned from2 sentences. An (ammonia leak) can be in a (chemical plant).Logical formLearned from2 sentences. (Blood ammonia levels) can be high.Logical formLearned from2 sentences. A smell of ammonia can be in air.Logical formLearned from2 sentences. Levels of ammonia may harm (asthma sufferers) with (health problems).Logical formLearned from2 sentences. Contents of ammonia may drop.Logical formLearned from2 sentences. A truck may carry some tons of liquid ammonia.Logical formLearned from2 sentences. An (ammonia spill) can be liquefied.Logical formLearned from2 sentences. A total of some persons may be poisoned by (ammonia gas).Logical formLearned from2 sentences. An (ammonia leak) can be liquefied.Logical formLearned from2 sentences. An (ammonia production unit) can be synthetic.Logical formLearned from2 sentences. An ammonia may spill from a (burst tube).Logical formLearned from2 sentences.