String getAnswer(Solver solver, int k) {
        String question = questions.get(k);
        String answer = "";
        String identity = "";
        ArrayList<ArrayList<ArrayList<NamedEntity>>> s = solver.solution;
        Pattern p1 = Pattern.compile("Who is the ([a-z]+)\\?");
        Matcher m = p1.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswerperson (s, identity);
            answer = formatP1(identity, answer);
            return answer;
        }
        Pattern p2 = Pattern.compile("Who lives in the ([a-z]+) house\\?");
        m = p2.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswerperson (s, identity);
            if (answer.equals("I don't know")) {
                answer = findansweroccupation(s, identity);
            }
            answer = formatP2(identity, answer);
            return answer;
        }
        Pattern p3 = Pattern.compile("What does ([A-Z][a-z]+) do\\?");
        m = p3.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findansweroccupation(s, identity);
            answer = formatP1(identity, answer);
            return answer;
        }
        Pattern p4 = Pattern.compile("What does the occupant of the ([a-z]+) house do\\?");
        m = p4.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findansweroccupation(s, identity);
            answer = formatP4(identity, answer);
            return answer;
        }
        /// START FROM HERE!!!!!
        Pattern p5 = Pattern.compile("Who do you know about ([a-z]+)\\?");
        m = p4.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findansweroccupation(s, identity);
            if (answer.equals("I don't know")) {
                answer = findanswercolor(s, identity);
                answer = formatP2(identity, answer);
            } else {
                String answer2 = findansweroccupation(s, identity);
                answer = formatP5(identity, answer, answer2); //if it's i don't know, it's nothing.
            }
            return answer;
        }
        Pattern p6 = Pattern.compile("What do you know about the ([a-z]+)\\?");
        m = p6.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswerperson(s, identity);
            if (answer.equals("I don't know")) {
                answer = findanswercolor(s, identity);
                answer = formatP4(answer);
            } else {
                String answer2 = findanswercolor(s, identity);
                answer = formatP5(answer, identity, answer2);
            }
            return answer;
        }
        Pattern p7 = Pattern.compile("What do you know about the ([a-z]+) house\\?");
        m = p7.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswerperson(s, identity);
            if (answer.equals("I don't know")) {
                answer = findansweroccupation(s, identity);
                answer = formatP2(answer, identity);
            } else {
                String answer2 = findansweroccupation(s, identity);
                answer = formatP5(answer, answer2, identity);
            }
            return answer;
        }
        Pattern p8 = Pattern.compile("Where does ([A-Z][a-z]+) live\\?");
        m = p8.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswercolor(s, identity);
            answer = formatP2(identity, answer;)
            return answer;
        }
        Pattern p9 = Pattern.compile("Where does the ([a-z]+) live\\?");
        m = p9.matcher(question);
        if (m.matches()) {
            identity = m.group(1);
            answer = findanswerperson(s, identity);
            answer = formatP4(answer, identity);
            return answer;
        }
        return answer;
    }