static public void findPersonDomain(){
    	Iterator it = Person.iterator();
    	Person pers;
    	FileWriter fw = null;
    	PrintWriter pw = null;
    	String key = null;
		try {
			fw = new FileWriter("parserResult/authorDomain.csv");
		 	pw = new PrintWriter(fw);
		 	//pw.println("Authors' Domain");
	    	while (it.hasNext()){
	    		pers = (Person) it.next();
	    		System.out.println(pers.name + " 's Domain are: ");
	    		//pw.println(pers.name + " 's Domain are: ");
	    		pw.print(pers.name+",");
	    		Collection collection = pers.domainMap.keySet();
	    		Iterator domainit = collection.iterator();
	    		while(domainit.hasNext()){
	    			key = (String)domainit.next();
	    			System.out.print((domainit.hasNext())?key+",":key+"");
	    			pw.print((domainit.hasNext())?key+",":key+"");
	    			//pw.print(key+",");
	    		}
	    		pw.println();
	    		System.out.println("\nxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
	    	}
	    	
	    	
	    	pw.close();
			fw.close();
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			
		}
    }