Instruct: Classify a given Amazon review as either positive or negative.
Query: A nice trip back in time.

This was recorded in the mid to late 60's, before Carlin was a household word. Even back then he had a keen ear on the woes of our society. It's also great proof that an artist can be funny without being profane; there's no one swear word in it. Be sure to check out the bit on the Indian Sargaent.