Wedding is related to Dress. Dress is related to Material. Material is related to Silk. 
Place is related to Foreign. Foreign is related to Alien. Alien is related to Planet. 
Wedding <--RelatedTo--> Dress <--RelatedTo--> Material <--RelatedTo--> Silk 
Place <--RelatedTo--> Foreign <--RelatedTo--> Alien <--RelatedTo--> Planet 