(Shark attacks) can be serious.Logical formLearned from3 sentences. Sharks can be from a world-city.Logical formLearned from3 sentences. Airmen may be painted with (shark teeth).Logical formLearned from3 sentences. A country can be a shark.Logical formLearned from3 sentences. Sharks may undergo an influx.Logical formLearned from3 sentences. Sharks can be in the (world economy).Logical formLearned from3 sentences. A country can be capable of adjusting to sharks.Logical formLearned from3 sentences. A (loan shark) may be turned.Logical formLearned from3 sentences. Studies can be constituted-of-or-filled-with sharks.Logical formLearned from3 sentences. An appearance may pertain-to sharks.Logical formLearned from3 sentences. Some dollars can be constituted-of-or-filled-with (shark fins).Logical formLearned from3 sentences. Limits can be on (shark fishing).Logical formLearned from3 sentences. A shark may bite_off an arm.Logical formLearned from3 sentences. Sharks may help.Logical formLearned from3 sentences. A length may pertain-to a shark.Logical formLearned from3 sentences.