^start of line
?repeats the group contents below at most once:
the the literal text the (case insensitive) colothe literal text colo (case insensitive) u?optionally matches the literal u (11710 / 1658 / 7516) (case insensitive)
rthe literal r (11410 / 1628 / 7216) (case insensitive)
s?optionally matches the literal s (11510 / 1638 / 7316) (case insensitive)
grthe literal text gr (case insensitive) athe literal a (9710 / 1418 / 6116) (case insensitive)
ethe literal e (10110 / 1458 / 6516) (case insensitive)
ythe literal y (12110 / 1718 / 7916) (case insensitive)
g modifier: global. Finds all matches instead of stopping after the first
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string