\d+a digit, repeated at least once
\s+any whitespace character, repeated at least once
.*?any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
+matches at least one character from the set below:
A-Zone character from A (6510) to Z (9010) (case sensitive)
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