A storm can be asteroid.Logical formLearned from12 sentences. A threat can be asteroid.Logical formLearned from11 sentences. Asteroids can be in an asteroid belt.Logical formLearned from11 sentences. Research can be asteroid.Logical formLearned from11 sentences. A base can be asteroid.Logical formLearned from10 sentences. Objects can be in an asteroid belt.Logical formLearned from10 sentences. Studies can be asteroid.Logical formLearned from10 sentences. A solar system can be asteroid.Logical formLearned from10 sentences. A bomber can be asteroid.Logical formLearned from10 sentences. A territory can be asteroid.Logical formLearned from10 sentences. (Impact craters) can be asteroid.Logical formLearned from10 sentences. A fragment can be asteroid.Logical formLearned from10 sentences. An asteroid impact can be catastrophic.Logical formLearned from9 sentences. An attack can be asteroid.Logical formLearned from9 sentences. A population can be asteroid.Logical formLearned from9 sentences.