Complex sentence: Open Space Institute (OSI) is a conservation organization and think tank that seeks to preserve scenic, natural and historic landscapes for public enjoyment, conserve habitats while sustaining community character and help protect the environment.
Split into simpler sentences: Open Space Institute (OSI) is a conservation organization and think tank with an extensive mission statement. It seeks to preserve scenic, natural and historic landscapes for public enjoyment, conserve habitats while sustaining community character, and help protect the environment.