AN ACT AMENDING REPUBLIC ACT NUMBERED SIXTY-SIX HUNDRED THIRTY-TWO ENTITLED "AN ACT GRANTING THE PHILIPPINE RACING CLUB, INC., A FRANCHISE TO OPERATE AND MAINTAIN A RACE TRACK FOR HORSE RACING IN THE PROVINCE OF RIZAL, AND EXTENDING THE SAID FRANCHISE BY TWENTY-FIVE YEARS FROM THE EXPIRATION OF THE TERM THEREOF.