Pay is related to Due. Due is related to Monthly. Monthly is related to Wage. 
Beef is a synonym of Complain. one thing you do when you Working is Complain. Working is related to Servant. 
Pay <--RelatedTo--> Due <--RelatedTo--> Monthly <--RelatedTo--> Wage 
Beef <--Synonym--> Complain <--HasSubevent-- Working <--RelatedTo--> Servant 