537
In 2006  Cisco Systems  and Apple negotiated over allowing Apple rights to use Cisco's  Linksys  iPhone trademark but the negotiations stalled when Cisco pushed for the two products to be interoperable .
 founded by: Cisco Systems, Linksys
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 founded by: Cisco Systems, Linksys