Complex sentence: In 1965 he laid the foundation stone at Heath Park, a medical teaching centre in the north of Cardiff, incorporating the University Hospital of Wales, a new dental school and hospital and also the Tenovus Institute for Cancer Research.
Split into simpler sentences: In 1965 he laid the foundation stone of a large medical teaching centre in Heath park, which is situated in the north of Cardiff. This centre incorporated the University Hospital of Wales, a new dental school and hospital and also the Tenovus Institute for Cancer Research.