system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] What are the Uruk-Hai pits made of and how were they formed in Isengard? Also, how do Orcs reproduce?
gpt
That is just stuff made up in the movies. In the actual story (that is the book) uruk-hai are just a breed of orcs. Also, goblins and orcs are one and the same thing.

Orcs reproduce sexually, like humans and elves and dwarves do.