Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Na na na na na na Bobby Mcgee yeah

It's a real pity we did,t see the full potential of Janis Joplin.When you think about it she was only recording fro a couple of years.It's like we were robbed or something of a great singer.I sort of got curious about her in the 80's sometime,and bought a couple of albums and enjoyed them.