A challenge can be an attempt.Logical formLearned from18 sentences. An attempt can be high.Logical formLearned from18 sentences. An attempt may be stopped.Logical formLearned from18 sentences. An attempt can be by a language.Logical formLearned from18 sentences. An attempt can be a flop.Logical formLearned from18 sentences. An attempt may pertain-to a crew.Logical formLearned from18 sentences. Attempts may pertain-to a character.Logical formLearned from18 sentences. Some attempts may prove fruitless.Logical formLearned from18 sentences. Attempts can be useless.Logical formLearned from18 sentences. Attempts may pertain-to an office.Logical formLearned from18 sentences. Attempts can be subversive.Logical formLearned from18 sentences. A study may represent an attempt.Logical formLearned from18 sentences. An (assassination attempt) can be successful.Logical formLearned from18 sentences. Followings can be an attempt.Logical formLearned from18 sentences. Attempts can be feeble.Logical formLearned from18 sentences.