Mystery is a synonym of Secret. Secret is related to Desire. 
Shy is a type of Throw. Throw is a synonym of Direct. Direct is related to Go. Go is related to School. 
Mystery <--Synonym--> Secret <--RelatedTo--> Desire 
Shy --IsA--> Throw <--Synonym--> Direct <--RelatedTo--> Go <--RelatedTo--> School 