private static String cut_the_pattern(String lemma_sentence) {
		String[] lemma_sentence_tokens = lemma_sentence.split(" ");
		String final_pattern = "";
		Boolean found = false;
		
		for(int i = 0; i < lemma_sentence_tokens.length; i++){
			if(i+1 < lemma_sentence_tokens.length && lemma_sentence_tokens[i+1].equals("<S>")){
				found = true;
			}
			if(i-1 > 0 && lemma_sentence_tokens[i-1].equals("<O>")){
				final_pattern += lemma_sentence_tokens[i];
				break;
			}
			if(found){
				final_pattern += lemma_sentence_tokens[i] + " ";
			}
			
		}
		
		return final_pattern;
	}