10. The data display server according to claim 6 , wherein said relational data is displayed in a descending order of a degree of relevancy representing how strong said relational data bears a relationship with said item data.
10. The data display server according to claim 6 , wherein said relational data is displayed in a descending order of a degree of relevancy representing how strong said relational data bears a relationship with said item data. 11. The data display server according to claim 10 , further comprising a user database in which user data is specified as personal information of the user, wherein: a display order of said relational data is changed by making use of said user data.