Fold is a type of Group. Fold is a synonym of Family. Family is related to Thanksgiving. 
Pair is related to Comparison. Comparison is related to Best. Best is related to Number. Number is related to Roman. 
Group <--IsA-- Fold <--Synonym--> Family <--RelatedTo--> Thanksgiving 
Pair <--RelatedTo--> Comparison <--RelatedTo--> Best <--RelatedTo--> Number <--RelatedTo--> Roman 