Invitations may be extended.Logical formLearned from39 sentences. An invitation can be presidential.Logical formLearned from39 sentences. An invitation can be to persons.Logical formLearned from39 sentences. An invitation can be to a political-leader.Logical formLearned from39 sentences. An invitation can be to talks.Logical formLearned from39 sentences. Invitations can be to tender.Logical formLearned from39 sentences. A visit can be at an invitation.Logical formLearned from38 sentences. Invitations may be mailed.Logical formLearned from38 sentences. An invitation may pertain-to a pope.Logical formLearned from38 sentences. Admission can be by invitation.Logical formLearned from38 sentences. An invitation can be to everyone.Logical formLearned from38 sentences. Invitations can be for bids.Logical formLearned from38 sentences. An invitation may pertain-to a leader.Logical formLearned from38 sentences. An invitation can be to a reception.Logical formLearned from38 sentences. An invitation can be to a wedding.Logical formLearned from37 sentences.