    Sentence 1: The steps around the water feature can  be drained for what uses?    Sentence 2: This is in front of the bronze doors leading  to the refreshment rooms, a central path flanked by  lawns leads to the sculpture gallery; the north, east  and west sides have herbaceous borders along the  museum walls with paths in front which continues  along the south facade; in the two corners by the  north facade there is planted an American Sweetgum.  tree; the southern, eastern and western edges of the  lawns have glass planters which contain orange and  lemon trees in summer, these are replaced by bay  trees in winter.