Complex sentence: China defended the resumption of negotiations on the "six-party" or "sextet", which include North and South Korea, China, Russia, United States and Japan have been stalled since 2008 by North Korean decision.
Split into simpler sentences: China defended the resumption of negotiations on the "six-party" or "sextet" talks, which include North and South Korea, China, Russia, the United States and Japan. Talks have been stalled since 2008 by North Korean decision.