Sidewalk Calligraphy Beijing

In the parks of Beijing you’ll often come across people practicing and displaying their calligraphy skills. Instead of ink and paper the paved ground is used as a canvas and water instead of ink. Some calligraphists paint in solitude while others command a small audience of assembled passer-bys.

This woman in Behai Park carefully drew in each square a separate charter using a large brush she dipped in a bucket of water. She moved up each row and started over when her brush strokes evaporated. I would love to know what she wrote. Was she simply practicing different characters or writing a verse from her favorite poem?