Complex sentence: Governor of Oklahoma Mary Fallin was a featured speakers during the official opening praising Shawnee officials for their determination in getting the project started, funded and completed led by former Shawnee Mayor Chuck Mills.
Split into simpler sentences: Governor of Oklahoma Mary Fallin was one of the featured speakers during the official opening. She praised Shawnee officials for their determination in getting the project started, funded and then finally completed, while also noting the efforts of several individuals such as former Shawnee Mayor Chuck Mills.