Split and simplify the following sentence while retaining its full meaning: Meetings with interested parties , including industry representatives , have taken place on a quarterly basis and bilateral meetings with FEDESA , also on a quarterly basis , have provided an excellent forum for frank and in-depth discussions on the issues of the day .
 Simplified version:
Meetings with interested parties , including industry representatives , were held quarterly . Bilateral meetings with FEDESA , also on a quarterly basis , provided an excellent forum for frank and in-depth discussions on the issues of the day .