A shutdown may play havoc with schedules.Logical formLearned from9 sentences. (Killer floods) may wreak havoc with (air traffic).Logical formLearned from9 sentences. (Transport havoc) may be caused by snowfalls.Logical formLearned from9 sentences. A country may reel from (transport havoc).Logical formLearned from9 sentences. Havoc can be on roads.Logical formLearned from8 sentences. A havoc may work by an earthquake.Logical formLearned from8 sentences. A group may wreak havoc.Logical formLearned from8 sentences. An explosion may cause havoc.Logical formLearned from8 sentences. Global warming may wreak havoc.Logical formLearned from8 sentences. Some typhoon may wreak havoc.Logical formLearned from8 sentences. A havoc can be on a road.Logical formLearned from8 sentences. A havoc may be caused.Logical formLearned from8 sentences. Tropical storm may create havoc tropical storm.Logical formLearned from8 sentences. Misfits may create havoc.Logical formLearned from8 sentences. A female may wreck havoc.Logical formLearned from8 sentences.