We need to determine how three operators, namely, a smiley-face, a pie-shape and an equal-sign, change or alter a set of shapes. The smiley-face alters the shading (from shaded to unshaded and vice versa) of all polygons such as triangles, squares, trapezoids, pentagons, etc. The pie-shape alters the size of all squares (from small to large and vice versa). The equal-sign alters the shading of all shapes and also replaces all circles with squares (replaces small circles with small squares and large circles with large squares).
