... is the same as the previous one, except that it uses lb to handle the additional taskof positioning the cursor at the beginning of the word. The cursor might be in the middle of the word, so you ... the word, so you want to move to the beginning with the b command.But if the cursor were already at the beginning of the word, the b command would move the cursorto the previous word instead. To guard ... to remove the parentheses, then use the map command: delete the open parenthesiswith x, find the closing one with f), delete it with x, and then repeat your search for an openparenthesis with...