If you mouse over the lower case letters, a pair of corresponding letters appears to help with letter recognition. (apples4theteacher.com)
Finally, you can also turn on additional options to access your camera, Chrome, and other apps by drawing corresponding letters on your screen, all with your knuckles. (digitaltrends.com)
Obtained foreign exchange import permits, established corresponding letters of credit and insured goods to be imported (jobhero.com)