A (signing key) can be secret.Logical formLearned from3 sentences. A player may receive a (signing bonus).Logical formLearned from3 sentences. A person may spend a (signing bonus).Logical formLearned from3 sentences. A defensive alliance may undergo a signing.Logical formLearned from3 sentences. A (world champion) may undergo a signing.Logical formLearned from3 sentences. A signing can be by a male.Logical formLearned from3 sentences. An anniversary may pertain-to a (treaty signing).Logical formLearned from3 sentences. A signing may pertain-to a league.Logical formLearned from3 sentences. A signing can be mandatory.Logical formLearned from3 sentences. Surrender may undergo a signing.Logical formLearned from3 sentences. Singer may undergo a signing.Logical formLearned from3 sentences. A signing may be made by manager.Logical formLearned from3 sentences. A (signing conference) can be in a world-city.Logical formLearned from3 sentences. A story may pertain-to a signing.Logical formLearned from3 sentences. Arenas may undergo a signing.Logical formLearned from3 sentences.