An investigation can be into activities.Logical formLearned from325 sentences. An activity can be covert.Logical formLearned from324 sentences. An activity can be expressive.Logical formLearned from322 sentences. (Consumer spending) may account for two-thirds of economic activity.Logical formLearned from321 sentences. An activity can be practical.Logical formLearned from320 sentences. Activities may pertain-to a military-or-other-action-organization.Logical formLearned from319 sentences. (Research activities) may pertain-to a male.Logical formLearned from316 sentences. Details may pertain-to activities.Logical formLearned from316 sentences. Activities may undergo a resumption.Logical formLearned from314 sentences. An activity can be abnormal.Logical formLearned from314 sentences. An activity can be voluntary.Logical formLearned from313 sentences. An activity can be simple.Logical formLearned from311 sentences. Activities may pertain-to a government.Logical formLearned from311 sentences. Activities may pertain-to women.Logical formLearned from308 sentences. Forms can be constituted-of-or-filled-with activity.Logical formLearned from308 sentences.