first(
        images = [ "g2_rectangle_sv_256x256.jpg",
	           "g2_rectangle_sv_512x512.jpg" ],
	answers = [ "30" ],
	correct_goto = "triangle",
	incorrect_goto = "failure",
    ).

triangle(
        images = [ "g2_triangle_sv_256x256.jpg",
                   "g2_triangle_sv_512x512.jpg" ],
	answers = [ "16" ],
	incorrect_goto = "failure",
	correct_goto = "success",
    ).
