Rough diamonds may undergo a purchase.Logical formLearned from4 sentences. Diamonds may be stolen on a month.Logical formLearned from4 sentences. Some diamonds may be cuted.Logical formLearned from4 sentences. A male may purchase a diamond.Logical formLearned from4 sentences. Diamonds may be mined in a country.Logical formLearned from4 sentences. A (diamond mining city) can be in a country.Logical formLearned from4 sentences. (Trading diamonds) may pertain-to a country.Logical formLearned from4 sentences. A blue diamond can be flawless.Logical formLearned from4 sentences. Rough diamonds can be in a country.Logical formLearned from4 sentences. A civil war may be fuelled by (blood diamonds).Logical formLearned from4 sentences. A (diamond control system) can be international.Logical formLearned from4 sentences. Exchange can be for (blood diamonds).Logical formLearned from4 sentences. A (diamond control system) can be tight.Logical formLearned from4 sentences. Progress can be in certifying an origin of rough diamonds.Logical formLearned from4 sentences. A (diamond production) may pass_through some firms.Logical formLearned from4 sentences.