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If a new threat suddenly arose -- if , for example , Al Qaeda threatened Saudi oil fields , radical Islamist officers got control of Pakistani nuclear weapons or China attacked Taiwan -- Washington could respond forcefully and decisively .
 Taiwan, China; China, Taiwan
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Taiwan, China; China, Taiwan