Complex sentence: He has called for the formal recognition of the Nagorno-Karabakh Republic by Armenia and his Heritage party has introduced bills for the recognition of the NKR to the Armenian National Assembly in August 2007, October 2010, and September 2012.
Split into simpler sentences: He has called for the formal recognition of the Nagorno-Karabakh Republic by Armenia. His Heritage party has introduced bills for the recognition of the NKR to the Armenian National Assembly in August 2007, October 2010, and September 2012.