An invitation may be extended by a president.Logical formLearned from8 sentences. Invitations may undergo an issuance.Logical formLearned from8 sentences. Invitations may be extended.Logical formLearned from8 sentences. Invitations can be to friends.Logical formLearned from8 sentences. A person may take_up a person on an invitation.Logical formLearned from8 sentences. An invitation can be to discussion.Logical formLearned from8 sentences. An invitation can be a surprise.Logical formLearned from8 sentences. An invitation can be from a king of a country.Logical formLearned from8 sentences. An invitation can be tempting.Logical formLearned from8 sentences. An invitation may pertain-to a society.Logical formLearned from8 sentences. Leader may get an invitation.Logical formLearned from8 sentences. A world-city may retract an invitation.Logical formLearned from8 sentences. A debate may erupt after an invitation.Logical formLearned from8 sentences. An invitation can be for (job interviews).Logical formLearned from8 sentences. A male may make at an invitation of a president.Logical formLearned from8 sentences.