Complex sentence: The organisation is run from his home in Coventry by Rami Abdulrahman (sometimes referred to as Rami Abdul Rahman), a Syrian Sunni Muslim who owns a clothes shop.
Split into simpler sentences: The organisation is run by Rami Abdulrahman (sometimes referred to as Rami Abdul Rahman) from his home in Coventry. He is a Syrian Sunni Muslim who owns a clothes shop.