(Security forces) may prevent attacks.Logical formLearned from8 sentences. Points may prevent a resolution to a siege.Logical formLearned from8 sentences. A political-leader may prevent attacks.Logical formLearned from8 sentences. A priority may prevent some attack.Logical formLearned from8 sentences. A person may prevent losses.Logical formLearned from8 sentences. A (knee injury) may prevent a female from competting for some months.Logical formLearned from8 sentences. A patent may prevent competition.Logical formLearned from8 sentences. An injury may prevent a coach from testifying.Logical formLearned from8 sentences. Snow may prevent an (emergency airlift).Logical formLearned from8 sentences. Rule may prevent a government from contracts.Logical formLearned from8 sentences. A strategy may prevent a kind of complication.Logical formLearned from8 sentences. Persons may prevent a repetition.Logical formLearned from8 sentences. New rules may prevent (cable companies) from shut_outing competitors.Logical formLearned from8 sentences. A (police statement) may prevent a crowd from attending.Logical formLearned from8 sentences. (Security forces) may prevent protests.Logical formLearned from8 sentences.