Complex sentence: Green Mountain Coffee Roasters announced on May 29,2013 they had partnered with the company to create a K-Cup for Keurig single-cup brewing systems to be available in a variety of channels in the US starting Spring 2014.
Split into simpler sentences: Green Mountain Coffee Roasters announced on May 29,2013 they had partnered with the company to create a K-Cup for Keurig single-cup brewing systems. The announcement indicated that the packs were available in a variety of channels in the US starting Spring 2014.