 A semantic net represents concepts ( e.g. " house " , " door " ) as nodes and relations among concepts ( e.g. " has @-@ a " ) as links between the nodes . The first AI program to use a semantic net was written by Ross Quillian and the most successful ( and controversial ) version was Roger Schank 's Conceptual dependency theory . 
 A semantic net <a href='uninflect' title='1'><mark>represents</mark></a> concepts ( e.g. " house " , " door " ) as nodes and relations among concepts ( e.g. " <a href='got' title='2'><mark>has</mark></a> @-@ a " ) as links between the nodes . The first AI program to use a semantic net was written by Ross Quillian and the most successful ( and controversial ) version was Roger Schank <a href='null_genetive' title='3'><mark>'s</mark></a>Conceptual dependency theory . 
A semantic net represent concepts ( e.g. " house " , " door " ) as nodes and relations among concepts ( e.g. " got @-@ a " ) as links between da nodes . Tdafirst AI program to use a semantic net was written by Ross Quillian and the most successful ( and controversial ) version was Roger Schank  Conceptual dependency theory .