Complex sentence: He is a long-time supporter of the Helen & Douglas House Hospice for Children and Young Adults in Oxford, which provides hospice care for children and continues to support charitable organisations by contributing readings and other appearances throughout the year.
Split into simpler sentences: He is a long-time supporter of the Helen & Douglas House Hospice for Children and Young Adults in Oxford, which provides hospice care for children. He continues to support charitable organisations by contributing readings and other appearances throughout the year.