Big is related to Cake. Cake is related to Surprise. Surprise is related to Kind. Kind is related to Generous. 
Number is part of Scale. you are likely to find Number in/at/on Equation. Equation is related to Result. 
Big <--RelatedTo--> Cake <--RelatedTo--> Surprise <--RelatedTo--> Kind <--RelatedTo--> Generous 
Scale <--PartOf-- Number --AtLocation--> Equation <--RelatedTo--> Result 