E1N1D2P3O1I1N1T1
11 points
ENDPOINT is validvalid
either of two points that mark the end of a line segment [n ENDPOINTS]
either of two points that mark the end of a line segment [n -S]
either of two points that mark the end of a line segment [n ENDPOINTS]
either of two points that mark the end of a line segment [n -S]