E1N1D2P3O1I1N1T1S1
12 points
ENDPOINTS is validvalid
ENDPOINT, either of two points that mark the end of a line segment [n]
ENDPOINT, either of two points that mark the end of a line segment [n]
ENDPOINT, either of two points that mark the end of a line segment [n]
ENDPOINT, either of two points that mark the end of a line segment [n]