Derivatives may undergo a trading.Logical formLearned from121 sentences. (Morning trading) can be on a (stock exchange).Logical formLearned from121 sentences. A trading can be open.Logical formLearned from120 sentences. Shares may rise in trading.Logical formLearned from120 sentences. (Trading relations) can be permanent.Logical formLearned from120 sentences. A trading can be risky.Logical formLearned from120 sentences. A close may pertain-to a trading.Logical formLearned from119 sentences. A country can be (trading nation).Logical formLearned from119 sentences. (Afternoon trading) can be in a US-city.Logical formLearned from118 sentences. (Trading volume) can be heavy.Logical formLearned from117 sentences. A year may undergo (trading days).Logical formLearned from117 sentences. Options may undergo a trading.Logical formLearned from116 sentences. A (trading week) can be shortened.Logical formLearned from116 sentences. Tradings can be with countries.Logical formLearned from116 sentences. An (insider trading) can be suspected.Logical formLearned from116 sentences.