Definition: You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
Input: The basic answer is indie (or independent) music is music that is released on smaller labels that operate independently from the mainstream music business.

But more often "indie" refers to a specific genre of contemporary music that is based on combining aesthetics of classic rock, punk, garage and art rock. I first heard the term indie rock starting to get used in the late 80s to early 90s to describe the music that was popular on college radio stations at the time. I don't think the definition has changed much since then, but the types of music that fit in this umbrella have become more diverse, both in style and popularity.
Output:
7