Complex sentence: Harry Dolling died in 1986 and Mrs. Dolling lived the rest of her life alone at Lissan without electricity, excluding that which was generated by the water wheel at her house; she had to use a gas canister to cook food.
Split into simpler sentences: Harry Dolling died in 1986 and Mrs Dolling lived the rest of her life alone at Lissan. She lived there without electricity, excluding that which was generated by the water wheel at her house; she had to use a gas canister to cook food.