Visitor is related to Tourist. Tourist is a type of Traveler. Carrier is a type of Traveler. Carrier is related to Blood. 
Kid is related to Play. Swing is a type of Play. Swing is a type of Live. 
Visitor <--RelatedTo--> Tourist --IsA--> Traveler <--IsA-- Carrier <--RelatedTo--> Blood 
Kid <--RelatedTo--> Play <--IsA-- Swing --IsA--> Live 