Complex sentence: Ken is supported by Valerie's uncle Albert Tatlock (Jack Howarth), with whom he shares a close relationship, but caring for the twins proves too difficult and they are sent to live with their grandparents in Glasgow.
Split into simpler sentences: Ken is supported by Valerie's uncle Albert Tatlock (Jack Howarth), with whom he shares a close relationship. However, caring for the twins proves too difficult and they are sent to live with their grandparents in Glasgow.