Twist is related to Candy. Candy is related to American. American is related to Doll. Doll is related to Shelf. 
Glad is related to Expression. Expression is a type of Agent. Drug is a type of Agent. 
Twist <--RelatedTo--> Candy <--RelatedTo--> American <--RelatedTo--> Doll <--RelatedTo--> Shelf 
Glad <--RelatedTo--> Expression --IsA--> Agent <--IsA-- Drug 