Complex sentence: The Max Planck Institute of Experimental Endocrinology, located in Hannover, Germany, was one of 80 institutes in the Max Planck Society (Max-Planck-Gesellschaft).
Split into simpler sentences: The Max Planck Institute of Experimental Endocrinology is located in Hannover, Germany. It is one of 80 institute in the Max Planck Society (Max Planck Gesellschaft).