private void personNamesStemCheck(List<String> features, String currentWord, String previousWord, String previousLabel){
		for(int i = 0; i < GlobalConstHelper.NAME_SUFFIXES.length; i++){
			String suffix = GlobalConstHelper.NAME_SUFFIXES[i];
			if(currentWord.endsWith(suffix)){
				String withoutSuffix = currentWord.substring(0, currentWord.length() - suffix.length());
				if(firstNameSet.contains(withoutSuffix) || lastnameSet.contains(withoutSuffix))
					features.add("personNames");
			}	
			if(previousWord != null && previousLabel.equals("PERSON") && !previousWord.endsWith(suffix) && currentWord.endsWith(suffix))
				features.add("withSuffix");
		}
	}