Complex sentence: Wigan marked the Diamond Jubilee of Elizabeth II by sculpting the Queen's portrait on a coffee bean; he described creating the work as "a bit of a challenge because a coffee bean crumbles and is hollow in the middle".
Split into simpler sentences: Wigan marked the Diamond Jubilee of Elizabeth II by sculpting the Queen's portrait on a coffee bean. He described creating the work as "a bit of a challenge because a coffee bean crumbles and is hollow in the middle".