Cruel is related to Harsh. Harsh is a synonym of Hard. Rock is a type of Hard. 
Shake is related to Desert. Desert is related to Cookie. Cookie is a type of Cook. Cook is related to Preparation. 
Cruel <--RelatedTo--> Harsh <--Synonym--> Hard <--IsA-- Rock 
Shake <--RelatedTo--> Desert <--RelatedTo--> Cookie --IsA--> Cook <--RelatedTo--> Preparation 