^start of line
.*any character (except for line terminators), repeated any number of times
\ban ASCII word boundary
Group 1(particular phrase) particular phrasethe literal text particular phrase (case sensitive) \W+any non-word character, repeated at least once
Group 2((?:\w+\W+){3}\w+) Non-Capturing Group(?:\w+\W+){3} {3}repeats the group contents below exactly 3 times:
\w+any word character, repeated at least once
\W+any non-word character, repeated at least once
\w+any word character, repeated at least once
.*any character (except for line terminators), repeated any number of times
$end of line
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string