answer: #Person1# and #Person2# are talking about hotlines nowadays. Then #Person1# tells #Person2# a hotline, opened in Nanjing, offers help to teenagers who have psychological problems or questions on legal issues.
documents: #Person1#: Hotlines are very common in today's life. Do you think so?
  #Person2#: Of course.
  #Person1#: Most of them are about amusement, in my opinion. But some of them are very important in our daily life.
  #Person2#: Is that true?
  #Person1#: Certainly. A free hotline offering help to teenagers, was opened in Nanjing.
  #Person2#: Can you tell me something more about it?
  #Person1#: It is the first part of the national hotline system to help to protect teens' rights. Young people who have psychological problems or questions on legal issues, can call for help. More than 100 experts are ready to offer help.
  #Person2#: Then... what is the telephone number?
  #Person1#: Call 961961, if you are in Nanjing. And 025961961, if you are outside.
  #Person2#: Oh, it will be a help to teenagers.