Investment is a type of Skin. Skin is related to Silk. Silk is related to Shirt. 
Height is related to Step. Step is related to Climb. Climb is related to Top. Top is a synonym of Pitcher. 
Investment --IsA--> Skin <--RelatedTo--> Silk <--RelatedTo--> Shirt 
Height <--RelatedTo--> Step <--RelatedTo--> Climb <--RelatedTo--> Top <--Synonym--> Pitcher 