Increase is related to Salary. Salary is a synonym of Wage. Wage is related to Monthly. Monthly is a type of Series. 
Laboratory is related to Experiment. Experiment is related to Activity. Role is a type of Activity. 
Increase <--RelatedTo--> Salary <--Synonym--> Wage <--RelatedTo--> Monthly --IsA--> Series 
Laboratory <--RelatedTo--> Experiment <--RelatedTo--> Activity <--IsA-- Role 