polygon is valid ...
multi-polygon is valid ...
MULTIPOLYGON(((1920 1660,1920 1462,3720 1462,3720 3262,1920 3262,1920 1958,2218 2189,1920 1660),(3718 1561,3360 2233,3718 1957,3718 1561),(2818 2653,2218 2189,2818 3253,3360 2233,2818 2653)))
((((1920, 1660), (1920, 1462), (3720, 1462), (3720, 3262), (1920, 3262), (1920, 1958), (2218, 2189)), ((3718, 1561), (3360, 2233), (3718, 1957)), ((2818, 2653), (2218, 2189), (2818, 3253), (3360, 2233))))
# of points: 14