Appointments can be necessary.Logical formLearned from118 sentences. A runoff can be necessary.Logical formLearned from118 sentences. Approval can be necessary.Logical formLearned from117 sentences. Review can be necessary.Logical formLearned from117 sentences. Presence can be necessary.Logical formLearned from117 sentences. Some conditions can be necessary.Logical formLearned from117 sentences. Restrictions can be necessary.Logical formLearned from117 sentences. An amendment can be necessary.Logical formLearned from117 sentences. An operation can be necessary.Logical formLearned from116 sentences. A government can be necessary.Logical formLearned from116 sentences. A program can be necessary.Logical formLearned from115 sentences. An adjustment can be necessary.Logical formLearned from115 sentences. Costs can be necessary.Logical formLearned from115 sentences. A necessary condition can be that something-is-the-case.Logical formLearned from115 sentences. A delay can be necessary.Logical formLearned from114 sentences.