CARE OF TREES IN ALL THREE PARKS (BOSTON COMMON, BOSTON PUBLIC GARDEN AND COMMONWEALTH AVENUE MALL), INCLUDING INJECTION OF ELMS TO CONTROL DUTCH ELM DISEASE, PROTECTIVE SPRAYING OR INJECTION OF OTHER SPECIES, PRUNING,FERTILIZING AND AERATION. CARE OF SCULPTURE IN ALL THREE PARKS INCLUDING RESTORATION, ANNUAL CLEANING, REMOVAL OF GRAFFITI, REPAIR OF STONE FRAMES AND PLATFORMS, MAINTENANCE OF FOUNTAINS. ANNUAL PLANTING OF TREES AND SHRUBS, THE INSTALLATION, REPLACEMENT AND CARE OF BENCHES AND OTHER PARK FURNITURE.