Hi everyone!

I have searched this forum and read the official stata help section, but I'm still not able to do what I want to do so I hope anyone here can help me.
My dataset consists of several variables of someones occupations in their professional career, measured at three points in time (each point in time equals one variable).
Now, for each variable there exist multiple occupations (entrepreneur, serial entrepreneur, investor, etc.) that can occur simultaneously.

An example occupation for one point in time might be "Entrepreneur" while for another observation it is "Investor, Serial Entrepreneur".
Now, I want to create a dummy variable "SubsequentEntrepreneur" that equals 1 if in any of these three strings contains the word "Entrepreneur" (or "Serial Entrepreneur") and 0 if it does not contain the phrase "Entrepreneur".

I think I need to use "strpos" but I have difficulties to connect the three variables (points in time). Maybe anyone has a suggestion?
I would be very grateful for any help!

Thank you very much,
Chris