4333
 The push for a federal constitutional amendment began in 1989 , after the Supreme Court ruled in Texas v. Johnson that a protester who had burned a flag at the 1984 Republican National Convention , in Dallas , was protected by free-speech rights . 
 location contains: Texas, Dallas
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:  Texas, Dallas 
Answer:
 location contains: Texas, Dallas