Pressure is related to Weight. Weight is related to Person. Progressive is a type of Person. Progressive is a synonym of Advanced. 
Tough is related to Person. Person wants (to) Commitment. Commitment is related to Engagement. 
Pressure <--RelatedTo--> Weight <--RelatedTo--> Person <--IsA-- Progressive <--Synonym--> Advanced 
Tough <--RelatedTo--> Person --Desires--> Commitment <--RelatedTo--> Engagement 