Premise: Black Sabbath were an English rock band , formed in Birmingham in 1968 , by guitarist and main songwriter Tony Iommi , bassist and main lyricist Geezer Butler , singer Ozzy Osbourne , and drummer Bill Ward . A year after embarking on a farewell tour , the band played their final concert in their home city of Birmingham on 4 February 2017 , after which they broke up .
Hypothesis: Black Sabbath is not from Birmingham.
Label: CONTRADICTION