(7.0,8.0): non-interior
(8.5,1.0): non-interior
(7.0,-5.0): non-interior
(4.0,-3.0): interior
(1.0,-3.0): non-interior
(-4.0,-4.0): non-interior
(-2.0,-1.5): interior
(-5.0,3.0): non-interior
(-3.0,5.0): non-interior
(-2.1,3.0): interior
(-3.0,4.0): interior
(2.0,-6.0): non-interior
(7.0,4.5): interior
(-1.0,0.0): interior
(5.0,0.0): interior
(-1.0,0.0): interior
(-7.0,0.0): non-interior