Complex sentence: In the UK, "McCartney" debuted at number 2, where it remained for three weeks behind the best-selling album of 1970, Simon and Garfunkel's "Bridge Over Troubled Water".
Split into simpler sentences: In the UK, "McCartney" debuted straight at number 2, where it remained for three weeks. It was only denied the top spot by the best-selling album of 1970, Simon and Garfunkel's "Bridge Over Troubled Water".