That's twice you have used 'sum1'. Perhaps you do not know the difference between a chat room and a forum? Exercise your brain.
Do you know how to make an array?
Do you know how to populate that array with keywords?
Do you know how to get user input?
Do you know how to walk thought a string of text and extract words?
Do you know how to use a for/next loop to search for matches?
Do you know how to print replies based on those matches?
This is not rocket science and this is very much QBasic level programming. You don't need the codez. You just need to read the manual/help files and apply what you have learned.
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TAZ
(Yes, I know I'm a PITA. But, there's a method to the madness.)