Complex sentence: In 2010, Keyes and Robert L. Bernstein, the founder of Human Rights Watch, together founded Advancing Human Rights, which supports human rights in closed societies, particularly through the use of new technology.
Split into simpler sentences: In 2010, Keyes and Robert L. Bernstein, the founder of Human Rights Watch, together founded Advancing Human Rights. AHR supports human rights in closed societies, particularly through the use of new technology.