A deal may prevent an international-political-entity from comming within some kilometers of a (town center).Logical formLearned from7 sentences. A drug may prevent flu.Logical formLearned from7 sentences. Male circumcision may prevent some infections.Logical formLearned from7 sentences. Politics may prevent progress on issues.Logical formLearned from7 sentences. A walkout may prevent a government from laws.Logical formLearned from7 sentences. Fightings may prevent aid from reaching hundreds of thousands.Logical formLearned from7 sentences. Spending may prevent the economy from achieving a soft landing.Logical formLearned from7 sentences. Some countries may prevent a sale of (luxury goods).Logical formLearned from7 sentences. Fog may prevent a flight.Logical formLearned from7 sentences. A country may prevent outbreaks.Logical formLearned from7 sentences. Weather may prevent repairs to (loading equipment).Logical formLearned from7 sentences. Police may prevent journalists from entering a town.Logical formLearned from7 sentences. Tanks may prevent teams from leaving a clinic.Logical formLearned from7 sentences. Steps may prevent a possibility.Logical formLearned from7 sentences. A malfunction may prevent a rover from taking some drive.Logical formLearned from7 sentences.