Lost is related to Unknown. Unknown is related to Surprise. Surprise requires Surprising. 
Intent is a synonym of Purpose. Purpose is related to Fit. Fit is related to Healthy. Doctor wants (to) Healthy. 
Lost <--RelatedTo--> Unknown <--RelatedTo--> Surprise --HasPrerequisite--> Surprising 
Intent <--Synonym--> Purpose <--RelatedTo--> Fit <--RelatedTo--> Healthy <--Desires-- Doctor 