This needs to be revised to consider
03-newline and
05-unbalanced.
01-prereq is red)02-prereq is red)03-newline is purple or the
default color)01-prereq is green;
02-prereq is green;
03-newline is blue;
04-unbalanced is blue)DELIM
(01-prereq is green;
02-prereq is green;
04-unbalanced is purple)