Fitness is a synonym of Beauty. Beauty is related to Hair. Hair is related to Bear. Bear is related to Black. 
Section is related to Battle. Battle is related to Single. Single is related to Bacteria. 
Fitness <--Synonym--> Beauty <--RelatedTo--> Hair <--RelatedTo--> Bear <--RelatedTo--> Black 
Section <--RelatedTo--> Battle <--RelatedTo--> Single <--RelatedTo--> Bacteria 