The number of our class is 25.
  A number of students are party members.
  Numbers of books have been stolen.
  Information that birdflu will be widespeaded is not true.
  Information that he gave us is not true.
  This type of machine.
  This kindsort of machine.
  Typewriter ------typist
  Those using imagery=those who are using imagery
  Compare A with B
  Compare to
  poets always compare sleep to death.