Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the best punk ROCK albums ever!

Everyone who likes rock music should own this album. The Clash was an amazing band, and this may be their best album. Joe Strummer and Mick Jones were/are both productive and talented artists well after their time in The Clash, and they were shockingly good together when they were young punks. "Train in Vain" and "Lost in the Supermarket" are among my favorite songs, and there are many other greats, including the title track, on "London Calling".