2677
 Patrick J. Cescau , 56 , Unilever 's co-chairman in London , will become chief executive of the company , while his counterpart in Rotterdam , the Netherlands , Antony Burgmans , 58 , will become nonexecutive chairman . 
 location contains: Netherlands, Rotterdam
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:  Netherlands, Rotterdam 
Answer:
 location contains: Netherlands, Rotterdam