Fly is related to Use. Use is related to Nose. Dog have Nose. Dog is related to Loyal. 
Silly is a type of Child. you are likely to find Child in/at/on School. you are likely to find Period in/at/on School. 
Fly <--RelatedTo--> Use <--RelatedTo--> Nose <--HasA-- Dog <--RelatedTo--> Loyal 
Silly --IsA--> Child --AtLocation--> School <--AtLocation-- Period 