svoid test_PhilosophyBot1_sanitizeInput() {
  new PhilosophyBot1 bot;
  assertEqualsVerbose("what is", bot.sanitizeInput("what is $x"));
  assertEqualsVerbose("what is this", bot.sanitizeInput("what is (this"));
  assertEqualsVerbose("what is this", bot.sanitizeInput("what is (this"));
  assertEqualsVerbose("i don't understand", bot.sanitizeInput("i don't understand"));
  assertEqualsVerbose("a", bot.sanitizeInput("'a'"));
}