An apology can be elaborate.Logical formLearned from20 sentences. An apology can be sheepish.Logical formLearned from20 sentences. An apology can be necessary.Logical formLearned from20 sentences. Part may pertain-to an apology.Logical formLearned from20 sentences. An apology can be nice.Logical formLearned from20 sentences. An apology can be overdue.Logical formLearned from20 sentences. An apology can be comprehensive.Logical formLearned from20 sentences. An apology can be mild.Logical formLearned from20 sentences. A US-president may make apologies.Logical formLearned from20 sentences. An apology can be to a scientist.Logical formLearned from20 sentences. An apology can be for a fact.Logical formLearned from20 sentences. Apologies may be given.Logical formLearned from20 sentences. An apology can be effective.Logical formLearned from20 sentences. A country may ask for an apology.Logical formLearned from20 sentences. Officials may demand an apology.Logical formLearned from20 sentences.