Premise: Led Zeppelin II is the eponymous second studio album by the English rock band Led Zeppelin , released on 22 October 1969 in the United States and on 31 October 1969 in the United Kingdom by Atlantic Records . It has been described as the band 's heaviest album . Led Zeppelin II was a commercial success , and was the band 's first album to reach number one on charts in the UK and the US .
Hypothesis: Led Zeppelin II is an EP.
Label: CONTRADICTION