A (shark attack) may occur.Logical formLearned from4 sentences. An attack can be by a shark.Logical formLearned from4 sentences. Sharks may win for a time.Logical formLearned from4 sentences. A call can be for an union of sharks.Logical formLearned from4 sentences. An union can be constituted-of-or-filled-with sharks.Logical formLearned from4 sentences. A spate can be constituted-of-or-filled-with (shark sightings).Logical formLearned from4 sentences. A person may think about sharks.Logical formLearned from4 sentences. States can be with (shark attacks).Logical formLearned from4 sentences. A person can be worried about sharks.Logical formLearned from4 sentences. A (shark attack) can be in a region.Logical formLearned from4 sentences. A (shark attack) can be off a coast.Logical formLearned from4 sentences. A shark may attack a wading.Logical formLearned from4 sentences. Sharks may look for food.Logical formLearned from4 sentences. Map may show location of (shark attack).Logical formLearned from4 sentences. (Shark attacks) may pertain-to the world.Logical formLearned from4 sentences.