21. The system of claim 20 , wherein determining, by the computing device, that the distance between the beginning point of the third stroke and the left edge of the second stroke satisfies the threshold distance comprises: determining, by the computing device, that the distance between the beginning point of the third stroke and the left edge of the second stroke is less than 25% of the distance between the left edge of the second stroke and the right edge of the second stroke.
21. The system of claim 20 , wherein determining, by the computing device, that the distance between the beginning point of the third stroke and the left edge of the second stroke satisfies the threshold distance comprises: determining, by the computing device, that the distance between the beginning point of the third stroke and the left edge of the second stroke is less than 25% of the distance between the left edge of the second stroke and the right edge of the second stroke. 22. The system of claim 21 , wherein the operations further comprise: designating, by computing device, the third stroke as being associated with a third handwritten character that is not associated with the first stroke or the second stroke.