Using Google Chrome on my Android tablet, I entered, separately, the terms "punk", "folk" and "rocker" with no embellishments.

"Punk" gave, in order, a dictionary definition of the term; an overview article of the musical genre with links to the artists, albums and videos;PEOPLE ALSO ASK:- (several non-commercial links); a Wikipedia entry on Punk Rock: many more references and links to articles and images in a similar vein.

"Folk" gave 3 small search boxes directing various genres of folk; an advert for clothing with the word folk in the company name;PEOPLE ALSO ASK:- (links to commercial and non-commercial sites); some more