Workers may stage an unofficial strike.Logical formLearned from2 sentences. A (report card) can be unofficial.Logical formLearned from2 sentences. Watchdogs can be unofficial.Logical formLearned from2 sentences. (Ticket sales) can be unofficial.Logical formLearned from2 sentences. A (prefight weigh-in) can be unofficial.Logical formLearned from2 sentences. An (election campaigning) can be unofficial.Logical formLearned from2 sentences. (Campaign tours) can be unofficial.Logical formLearned from2 sentences. A wildcat can be unofficial.Logical formLearned from2 sentences. A (peace track) can be unofficial.Logical formLearned from2 sentences. A (peace settlement) can be unofficial.Logical formLearned from2 sentences. A drive can be unofficial.Logical formLearned from2 sentences. A disruption can be unofficial.Logical formLearned from2 sentences. Some scorecards can be unofficial.Logical formLearned from2 sentences. An activity can be unofficial.Logical formLearned from2 sentences. A shield can be unofficial.Logical formLearned from2 sentences.