Question 895693
{{{drawing(300,300,-2,10,-2,10,grid(1),circle(2,3,0.2),circle(6,3,0.2),circle(4,9,0.2),circle(8,9,0.2),line(2,3,6,3),line(6,3,8,9),line(8,9,4,9),line(4,9,2,3))}}}