SRL for [landscaping]: Discuss with Conrail - or Conrail 's successor - the possibility of their [landscaping] the property along Girard Avenue in exchange for a pledge by the Zoo to maintain the landscaping in good order .
ARG-0: their | ARG-1: the property along Girard Avenue | ARG-M-ADJ: in exchange for a pledge by the Zoo to maintain the landscaping in good order