sentences:  He received some schooling at Lonsbury College at Hackney Downs but at the age of 15 was working as a haberdasher's assistant.By his mid-twenties he was studying art, first at the North London School of Drawing and then at the Royal College of Art.Clemens submitted works to the British Institution's student competition, and his talent was recognized with a two-year scholarship in sculpture paying £50 a year and inclusion in the associated exhibition at the Tate Museum.