A tsunami may wreak havoc on shores.Logical formLearned from3 sentences. Waves may wreak havoc.Logical formLearned from3 sentences. Persons may create havoc.Logical formLearned from3 sentences. A (maoist insurgency) may wreak havoc.Logical formLearned from3 sentences. Storms may wreak havoc with some campers.Logical formLearned from3 sentences. A requirement may play havoc with an (operating system).Logical formLearned from3 sentences. A havoc may be caused by a blockade.Logical formLearned from3 sentences. A (bird flu epidemic) may wreak havoc.Logical formLearned from3 sentences. A raid may be accompanied by scenes of havoc.Logical formLearned from3 sentences. (Banking turmoil) may cause havoc.Logical formLearned from3 sentences. Gusts may wreak havoc.Logical formLearned from3 sentences. Rain may cause havoc.Logical formLearned from3 sentences. A (health scare) may work havoc on industries.Logical formLearned from3 sentences. Strikes may wreak havoc on transport.Logical formLearned from3 sentences. A threat of a disease may wreak havoc with a (tourism industry).Logical formLearned from3 sentences.