STRING allows you to create a polygon entity by selecting
planar positions and stringing the vertices of the polygon
to the desired shape. After you pick the eighth vertex, 
the polygon is automatically closed.

Indicate the type of polygon you want by choosing from the
following options:


OUTLINE - to assign the active entity color to the polygon
outline.

FILLED - to automatically fill-in the polygon with a color
from the color palette supported by your graphics card.

