static void ai_activeSpec_answerChatLine(S line) {
  ret if ai_textOfChatLine(line) == null;
  ret unless is(line, 'recent);
  ret if is(line, "answered in the chat");
  S a = ai_text("answers", line);
  ret if empty(a);
  if (swic(line, "smart bot's chat")
    ? postToSmartBotsChat(response) : postToStefansChat(response))
    post(line, "was", "answered in the chat");
}