Safety is the opposite of Fear. Fear is related to Like. Like is related to Disease. 
Legacy is a synonym of Heritage. Heritage is a type of Information. Information is related to Personal. Personal is related to Experience. 
Safety <--Antonym--> Fear <--RelatedTo--> Like <--RelatedTo--> Disease 
Legacy <--Synonym--> Heritage --IsA--> Information <--RelatedTo--> Personal <--RelatedTo--> Experience 