52472
The announcement on Thursday was a veiled threat to unionists , mostly Protestants , who want Northern Ireland to remain part of Britain -- and in particular to Ian Paisley , the firebrand preacher who leads the largest unionist party .
 Ian Paisley, Northern Ireland
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:
 Ian Paisley, Northern Ireland