A boom can be sudden.Logical formLearned from230 sentences. An action can be sudden.Logical formLearned from228 sentences. An escalation can be sudden.Logical formLearned from228 sentences. A bout can be sudden.Logical formLearned from227 sentences. A crisis can be sudden.Logical formLearned from226 sentences. A downturn can be sudden.Logical formLearned from225 sentences. A crash can be sudden.Logical formLearned from224 sentences. A realisation can be sudden.Logical formLearned from220 sentences. Drops can be sudden.Logical formLearned from220 sentences. A motion can be sudden.Logical formLearned from219 sentences. An intrusion can be sudden.Logical formLearned from218 sentences. A break can be sudden.Logical formLearned from216 sentences. A transition can be sudden.Logical formLearned from213 sentences. A sudden death may pertain-to a father.Logical formLearned from213 sentences. Surges can be sudden.Logical formLearned from213 sentences.