Sue can be Pregnant. Person wants (to) Pregnant. Person wants (to) Conversation. Conversation is related to Prayer. 
Main is related to Heart. Heart is related to Exercise. Exercise requires Run. 
Sue --HasProperty--> Pregnant <--Desires-- Person --Desires--> Conversation <--RelatedTo--> Prayer 
Main <--RelatedTo--> Heart <--RelatedTo--> Exercise --HasPrerequisite--> Run 