A national anthem can be unofficial.Logical formLearned from169 sentences. A male may sing a national anthem.Logical formLearned from150 sentences. A version may pertain-to a national anthem.Logical formLearned from146 sentences. A national anthem may be sung.Logical formLearned from116 sentences. A song can be an anthem.Logical formLearned from113 sentences. A person may sing a national anthem.Logical formLearned from113 sentences. A version may pertain-to an anthem.Logical formLearned from111 sentences. Anthems can be patriotic.Logical formLearned from97 sentences. An anthem may play.Logical formLearned from94 sentences. An anthem may be sung.Logical formLearned from92 sentences. An anthem can be patriotic.Logical formLearned from88 sentences. An anthem may undergo a rendition.Logical formLearned from78 sentences. An anthem may pertain-to a singer.Logical formLearned from72 sentences. An anthem can be personal.Logical formLearned from68 sentences. A band may play a national anthem.Logical formLearned from65 sentences.