Input (grade 11): Many family names are derived from Stephen: the most common are Stephens\/Stevens and Stephenson\/Stevenson (others include Stephen, Stephan, Staphan, Stefan, Stevin and Stever).
Output (grade 10): Many family names come from Stephen: the most common are Stephens\/Stevens and Stephenson\/Stevenson (others include Stephen, Stephan, Stefan, Stevin, and Stever).