^start of line
Negative Lookahead(?!.*(?:ONLY|PRACA)) .*any character (except for line terminators), repeated any number of times
Non-Capturing Group(?:ONLY|PRACA) ONLYthe literal text ONLY (case sensitive) PRACAthe literal text PRACA (case sensitive) .*any character (except for line terminators), repeated any number of times
\ban ASCII word boundary
featurethe literal text feature (case sensitive) \.?optionally matches the literal . (4610 / 568 / 2E16)
\w*any word character, repeated any number of times
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