Life can be Energy. Energy is the opposite of Weakness. Weakness is the opposite of Fitness. Fitness is a synonym of Strength. 
Eyebrow is a type of Hair. Lock is a type of Hair. 
Life --HasProperty--> Energy <--Antonym--> Weakness <--Antonym--> Fitness <--Synonym--> Strength 
Eyebrow --IsA--> Hair <--IsA-- Lock 