German football league system
The German football league system , or league pyramid , refers to the hierarchically interconnected league system for association football in Germany that in the 2016–17 season consists of 2 , 235 leagues in up to 13 levels having 31 , 645 teams , in which all divisions are bound together by the principle of promotion and relegation . 
<triplet> German football league system <subj> league system <obj> instance of