u/Impressive-Ad-8623

So in my previous post, I realized I drew a wrong molecule for terpene. However, I can still group the isoprene different than proffesor. Are both ways correct or just the professor.

Can anyone explain what i did wrong. Honestly a pic might help. Chatgpt says im cutting the c2 and c3 bond but im not sure what my mistake is in identifying the isoprene in terpene. Top is mine bottom proffesor