Riddle 3 - IN SPACE

                       There are five
                       letters in this name
   The first is in cup
   but not in up
              The second is in fox
              but not in fax
                         The third is in mine
                         but not in fine
                                    The fourth is in bed
                                    but not in bad
                                               The fifth is in trunk
                                               but not in drunk
                                                                        W H A T    I S   I T ?