Complex sentence: An invitation to visit and open Avondale's agricultural displays was accepted and on the 16th March 1979 the Prince of Wales officially opened Avondale by planting a tree near the entrance to the farm.
Split into simpler sentences: An invitation to visit and open Avondale's agricultural displays sent and accepted. On the 16th March 1979 the Prince of Wales officially opened Avondale by planting a tree near the entrance to the farm.