Reach is a synonym of Stretch. Stretch is related to Flexibility. 
Curiosity is related to Cat. Cat requires Meat. you are likely to find Meat in/at/on Oven. you are likely to find Pizza in/at/on Oven. 
Reach <--Synonym--> Stretch <--RelatedTo--> Flexibility 
Curiosity <--RelatedTo--> Cat --HasPrerequisite--> Meat --AtLocation--> Oven <--AtLocation-- Pizza 