Authorities may be concealed.Logical formLearned from14 sentences. A country may conceal activities.Logical formLearned from14 sentences. A bomb may be concealed in a motorcycle.Logical formLearned from14 sentences. A world-city may conceal weapons of mass destruction.Logical formLearned from14 sentences. A mother may be concealed.Logical formLearned from13 sentences. A size may be concealed upon a person.Logical formLearned from13 sentences. Neighborhoods may be concealed.Logical formLearned from13 sentences. An industry may be concealed.Logical formLearned from13 sentences. A female may conceal herself.Logical formLearned from13 sentences. A (tobacco industry) may be concealed.Logical formLearned from13 sentences. A bomb may be concealed.Logical formLearned from13 sentences. Ads may be concealed.Logical formLearned from13 sentences. (Debt relief) may conceal filing.Logical formLearned from12 sentences. A word may be concealed.Logical formLearned from12 sentences. Faces may be concealed.Logical formLearned from12 sentences.