system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 What is umami?

I’ve had it explained to me multiple times but I still don’t think I understand. What exactly is it?
gpt
You may remember being told about taste buds and the flavors they can detect, sweet, salty, sour, and bitter. Umami is the fifth flavor group, usually referred to as savory by English speakers these days.