user: Identify which instrument is string or percussion: Rototom, Mugni

assistant: Mugni is string, Rototom is percussion.

user: What is the Oxford Comma?

assistant: In English-language punctuation, a serial comma (also called a series comma, Oxford comma, or Harvard comma) is a comma placed immediately after the penultimate term (i.e., before the coordinating conjunction, such as and or or) in a series of three or more terms. For example, a list of three countries might be punctuated either as "France, Italy and Spain" (without the serial comma) or "France, Italy, and Spain" (with the serial comma).

user: Summarize the key developments in human evolution based on the paragraph below

assistant: 1) Primates diverged from other mammals 85 million years ago
2) The hominid family emerged 15-20 million years ago. 
3) Hominins parted from gorillas between 8 and 9 million years ago
4) Australopithecines separated from the Pan genus 4-7 million years ago
5) The Homo genus appeared over 2 million years ago
6) Anatomically modern humans emerged in Afirca 300,000 years ago