With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cricket is followed in the Indian subcontinent.
text_B: A simple polygon that is not convex is called concave , non-convex or reentrant .. simple polygon. simple polygon. convex. convex polygon. A concave polygon will always have at least one reflex interior angle -- that is , an angle with a measure that is between 180 degrees and 360 degrees exclusive .. reflex interior angle. reflex angle. Some lines containing interior points of a concave polygon intersect its boundary at more than two points .. Some diagonals of a concave polygon lie partly or wholly outside the polygon .. diagonals. diagonal#Polygons. Some sidelines of a concave polygon fail to divide the plane into two half-planes one of which entirely contains the polygon .. sidelines. extended side. None of these three statements holds for a convex polygon .. convex. convex polygon. As with any simple polygon , the sum of the internal angles of a concave polygon is -LRB- n − 2 -RRB- radians , equivalently 180 ° × -LRB- n − 2 -RRB- , where n is the number of sides .. simple polygon. simple polygon. It is always possible to partition a concave polygon into a set of convex polygons .. convex. convex polygon. partition. Partition of a set. A polynomial-time algorithm for finding a decomposition into as few convex polygons as possible is described by .. convex. convex polygon. algorithm. algorithm. A triangle can never be concave , but there exist concave polygons with n sides for any n > 3 .. triangle. triangle. An example of a concave quadrilateral is the dart .. quadrilateral. quadrilateral. dart. dart ( geometry ). At least one interior angle does not contain all other vertices in its edges and interior .. The convex hull of the concave polygon 's vertices , and that of its edges , contains points that are exterior to the polygon .. convex. convex polygon. convex hull. convex hull
not_related.