A celebration may be concealed.Logical formLearned from10 sentences. Persons may conceal self.Logical formLearned from10 sentences. A waiting may be concealed.Logical formLearned from10 sentences. Eyes may be concealed.Logical formLearned from10 sentences. A us-state may be concealed.Logical formLearned from10 sentences. Darkness may be concealed.Logical formLearned from10 sentences. A person may conceal feelings.Logical formLearned from10 sentences. A woman may be concealed.Logical formLearned from10 sentences. A trader may conceal a (trading loss).Logical formLearned from10 sentences. An appearance may be concealed.Logical formLearned from10 sentences. An address may be concealed.Logical formLearned from10 sentences. An url may be concealed.Logical formLearned from10 sentences. A tunnel may be concealed by a building.Logical formLearned from10 sentences. A female (suicide bomber) may conceal explosives.Logical formLearned from10 sentences. Companies may be concealed.Logical formLearned from10 sentences.