Precise is a synonym of Accurate. Accurate is related to Sound. Sigh is a type of Sound. 
Price is related to Unit. Unit is a type of Thing. Thing is a type of Situation. Dilemma is a type of Situation. 
Precise <--Synonym--> Accurate <--RelatedTo--> Sound <--IsA-- Sigh 
Price <--RelatedTo--> Unit --IsA--> Thing --IsA--> Situation <--IsA-- Dilemma 