An execution may prevent exposure of secrets a dictator.Logical formLearned from13 sentences. A method can be for preventing attacks.Logical formLearned from13 sentences. (Term limits) may prevent a male from running as president.Logical formLearned from13 sentences. American companies may be prevented from following suit.Logical formLearned from13 sentences. (Security measures) may prevent casualties.Logical formLearned from13 sentences. Regulations may be aimed at preventing carpal-tunnel syndrome.Logical formLearned from13 sentences. Areas may prevent residents from traveling between towns.Logical formLearned from13 sentences. Persons may prevent injuries.Logical formLearned from13 sentences. Weather may prevent some planes from carry_outing sorties.Logical formLearned from13 sentences. Effectiveness can be in preventing pregnancy.Logical formLearned from13 sentences. An obstacle may prevent some suspects from trial.Logical formLearned from13 sentences. A male may be prevented from switching teams.Logical formLearned from13 sentences. Fog may prevent a plane from landing.Logical formLearned from13 sentences. Survivors may prevent acts of looting.Logical formLearned from13 sentences. A female may prevent a male.Logical formLearned from12 sentences.