Brick is related to Coal. Coal is related to Old. Old is related to Man. Crew is a type of Man. 
Marry is related to Christmas. Card can be used for Christmas. Card is related to Related. 
Brick <--RelatedTo--> Coal <--RelatedTo--> Old <--RelatedTo--> Man <--IsA-- Crew 
Marry <--RelatedTo--> Christmas <--UsedFor-- Card <--RelatedTo--> Related 