Necessary conditions may be fulfilled.Logical formLearned from18 sentences. An authorization can be necessary.Logical formLearned from18 sentences. Concessions can be necessary.Logical formLearned from18 sentences. Taxes can be necessary.Logical formLearned from18 sentences. Acts can be necessary.Logical formLearned from18 sentences. New rules can be necessary.Logical formLearned from18 sentences. Calculations can be necessary.Logical formLearned from18 sentences. A transplant can be necessary.Logical formLearned from18 sentences. A pre-registration can be necessary.Logical formLearned from18 sentences. A need can be necessary.Logical formLearned from18 sentences. A card can be necessary.Logical formLearned from18 sentences. A message can be necessary.Logical formLearned from18 sentences. Substitution can be necessary.Logical formLearned from18 sentences. Provision can be necessary.Logical formLearned from18 sentences. Design can be necessary.Logical formLearned from18 sentences.