Premise: Superunknown . It debuted at number one on the Billboard 200 , selling 310,000 copies in its opening week and reached high positions on charts worldwide . The album has been certified five times platinum by the RIAA in the United States , has sold 10 million copies worldwide and remains Soundgarden 's most successful album .
Hypothesis: Superunknown sold some copies.
Label: ENTAILMENT