Appear is related to Show. you are likely to find Candy in/at/on Show. Child wants (to) Candy. Child is the opposite of Father. 
Boyfriend is a type of Single. Single is the opposite of Marry. Marry is related to Celebration. Balloon can be used for Celebration. 
Appear <--RelatedTo--> Show <--AtLocation-- Candy <--Desires-- Child <--Antonym--> Father 
Boyfriend --IsA--> Single <--Antonym--> Marry <--RelatedTo--> Celebration <--UsedFor-- Balloon 