Hypothesis is related to Idea. Idea is related to Invention. Invention is related to Wheel. Rim is part of Wheel. 
Diet is related to Portion. Portion is related to Lip. 
Hypothesis <--RelatedTo--> Idea <--RelatedTo--> Invention <--RelatedTo--> Wheel <--PartOf-- Rim 
Diet <--RelatedTo--> Portion <--RelatedTo--> Lip 