A (package signing key) may pertain-to a female.Logical formLearned from18 sentences. (Combat command-collate signing) may save flight.Logical formLearned from18 sentences. A (cooperation deal) may undergo a signing.Logical formLearned from18 sentences. A signing may help.Logical formLearned from18 sentences. A sports-celebrity may undergo a signing.Logical formLearned from18 sentences. Papers may undergo a signing.Logical formLearned from18 sentences. A US-president may honore veterans with a signing of legislation.Logical formLearned from18 sentences. A year may end with a (signing ceremony).Logical formLearned from18 sentences. A (signing ceremony) can be grim.Logical formLearned from18 sentences. A (signing ceremony) can be somber.Logical formLearned from18 sentences. A treaty may undergo a (signing ceremony).Logical formLearned from18 sentences. A cooperative agreement may undergo a signing.Logical formLearned from18 sentences. A proclamation may undergo a signing.Logical formLearned from18 sentences. A signing can be from a world-city.Logical formLearned from18 sentences. A signing may pertain-to a week.Logical formLearned from18 sentences.