A term can be formal.Logical formLearned from163 sentences. A tone can be formal.Logical formLearned from163 sentences. An experience can be formal.Logical formLearned from163 sentences. A possession can be formal.Logical formLearned from161 sentences. An (opening ceremony) can be formal.Logical formLearned from160 sentences. An operation can be formal.Logical formLearned from160 sentences. An arbitration can be formal.Logical formLearned from160 sentences. An effort can be formal.Logical formLearned from159 sentences. A head can be formal.Logical formLearned from159 sentences. A notation can be formal.Logical formLearned from158 sentences. Gatherings can be formal.Logical formLearned from158 sentences. Leadership can be formal.Logical formLearned from158 sentences. Greetings can be formal.Logical formLearned from157 sentences. Commitments can be formal.Logical formLearned from157 sentences. Participation can be formal.Logical formLearned from156 sentences.