International markets can be worried about an effect.Logical formLearned from11 sentences. A country can be worried about a (missile program).Logical formLearned from11 sentences. Persons can be worried about safety.Logical formLearned from11 sentences. A person can be worried about an economic slowdown.Logical formLearned from11 sentences. (Finance officials) can be worried about prices.Logical formLearned from11 sentences. Persons can be worried about a plight of a civilian population.Logical formLearned from11 sentences. Organizers can be worried.Logical formLearned from11 sentences. A family can be worried that something-is-the-case.Logical formLearned from11 sentences. Investors can be worried about a possibility.Logical formLearned from11 sentences. Governments can be worried.Logical formLearned from11 sentences. Settlers can be worried.Logical formLearned from11 sentences. (City officials) can be worried about finding food.Logical formLearned from11 sentences. Diplomats can be worried.Logical formLearned from11 sentences. Relatives can be worried.Logical formLearned from11 sentences. A person can be worried about a (world record).Logical formLearned from11 sentences.