Bat is related to Fruit. Fruit is related to Produce. Produce is related to Make. Make is related to King. 
Fellow is related to Man. Man is related to Old. Old is the opposite of Youth. Youth is a synonym of Adolescent. 
Bat <--RelatedTo--> Fruit <--RelatedTo--> Produce <--RelatedTo--> Make <--RelatedTo--> King 
Fellow <--RelatedTo--> Man <--RelatedTo--> Old <--Antonym--> Youth <--Synonym--> Adolescent 