! scope="row"| 2014 
 ! scope="row"| 2015 
 ! scope="row " rowspan="2"| 2016 
 ! scope="row " rowspan="3"| 2017
Head entity: 2014 Q17015029 2
Tail entity: 2015 Q20078794 6
Relation (head \u2192 tail): P156
Inverse relation (tail \u2192 head): P155