A shark can be voracious.Logical formLearned from6 sentences. Sharks may sense blood.Logical formLearned from6 sentences. A shark may explain an escalation.Logical formLearned from6 sentences. A decline can be in (shark populations).Logical formLearned from6 sentences. Persons may invent new sharks.Logical formLearned from6 sentences. A picture may show a shark.Logical formLearned from6 sentences. A shark can be purple.Logical formLearned from6 sentences. A shark can be curious.Logical formLearned from6 sentences. Sharks can be with (laser beams).Logical formLearned from6 sentences. Teeth can be constituted-of-or-filled-with sharks.Logical formLearned from6 sentences. (Loan sharks) can be unscrupulous.Logical formLearned from6 sentences. A relative can be constituted-of-or-filled-with sharks.Logical formLearned from6 sentences. A shark may circle.Logical formLearned from6 sentences. An aquarium can be with sharks.Logical formLearned from6 sentences. A center can be for (shark research).Logical formLearned from6 sentences.