Highlight is a type of Detail. Detail is related to Little. Little is related to Tiny. 
Need is the opposite of Sufficient. Sufficient is similar to Comfortable. Comfortable is related to Familiar. 
Highlight --IsA--> Detail <--RelatedTo--> Little <--RelatedTo--> Tiny 
Need <--Antonym--> Sufficient <--SimilarTo--> Comfortable <--RelatedTo--> Familiar 