Margins can be competitive.Logical formLearned from11 sentences. A person may change margins.Logical formLearned from11 sentences. Margins may decrease.Logical formLearned from11 sentences. A margin of safety can be narrow.Logical formLearned from11 sentences. A margin may pertain-to a caldera.Logical formLearned from11 sentences. A margin can be scalloped.Logical formLearned from11 sentences. A margin can be fragile.Logical formLearned from11 sentences. An (operating margin) can be for a quarter.Logical formLearned from11 sentences. A total of some samples may be collected with a margin of error of some (percentage points).Logical formLearned from11 sentences. A survey of some persons may have an (error margin) of some (percentage points).Logical formLearned from11 sentences. A person may live on margins.Logical formLearned from11 sentences. (Refining margins) can be increased.Logical formLearned from11 sentences. (Refining margins) may remain under pressure.Logical formLearned from11 sentences. A male may trail by a margin.Logical formLearned from11 sentences. A person may build a margin.Logical formLearned from11 sentences.