4787
 In a telephone interview Friday , Robert Glaser , the founder and chief executive of RealNetworks , said the patent was related to an invention that the company first sought protection for in 1994 . 
 company: Robert Glaser, RealNetworks; company founders: RealNetworks, Robert Glaser
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
 Entity Pairs:  Robert Glaser, RealNetworks; RealNetworks, Robert Glaser 
Answer:
 company: Robert Glaser, RealNetworks; company founders: RealNetworks, Robert Glaser