If the process has a normal distribution, 99.7% of the population is captured by the curve at three standard deviations from the mean. Stated another way, there is only a 1-99.7%, or 0.3% chance of finding a value beyond 3 standard deviations.
Relish is one of them. The most traditional corn relish traces its origins to the South, particularly Louisiana. This sort of relish is often little more than fresh corn kernels, hot peppers, and spices that are boiled briefly in vinegar. The vinegar acts as a preserving agent and also pickles the corn.
Corn flour is made solely from yellow corn and has almost the same consistency as wheat flour. It is marketed as corn flour, especially in restaurant and institutional use. My restaurant uses it for frying seafood as well as blending it with white (wheat) flour for a variety of coating applications.