law: Transfer of Property Act, 1882
  24. Transfer to such of certain persons as survive at some
  
  period not specified
  Where, on a transfer of property, an interest therein is to
  
  accrue to such of certain persons as shall be surviving at some period, but the
  
  exact period is not specified, the interest shall go to such of them as shall
  
  be alive when the intermediate or precedent interest ceases to exist, unless a
  
  contrary intention appears from the terms of the transfer.
  Illustration
  A transfer's property to B for life, and after his death to C
  
  and D, equally to be divided between them, or to the survivor of them. C dies
  
  during the lifetime of B. D survives B. At B's death the property passes to D.