A flight may be concealed.Logical formLearned from2 sentences. An art may be concealed.Logical formLearned from2 sentences. A pious opinion may be concealed.Logical formLearned from2 sentences. A cloud of a wrongdoing may conceal persons.Logical formLearned from2 sentences. An idea may conceal unity.Logical formLearned from2 sentences. A corpse may be concealed for a time.Logical formLearned from2 sentences. Evidence of critical areas may be concealed.Logical formLearned from2 sentences. A (nuclear programme) may be concealed for some decades.Logical formLearned from2 sentences. Differentials may be concealed by estimates of an effect of (retirement education).Logical formLearned from2 sentences. Inventions may be concealed.Logical formLearned from2 sentences. A coin may be concealed.Logical formLearned from2 sentences. A male may conceal under a contempt.Logical formLearned from2 sentences. A female may be concealed from persons.Logical formLearned from2 sentences. A male may conceal impressions on seeing a betrothed.Logical formLearned from2 sentences. A style may be concealed.Logical formLearned from2 sentences.