Silly is a synonym of Weak. you would Rest because Weak. Rest is related to Music. 
Barn is related to Chicken. Chicken is related to Animal. Animal is related to Hunter. Hunter is related to Predator. 
Silly <--Synonym--> Weak <--MotivatedByGoal-- Rest <--RelatedTo--> Music 
Barn <--RelatedTo--> Chicken <--RelatedTo--> Animal <--RelatedTo--> Hunter <--RelatedTo--> Predator 