With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shake It Up starred Zendaya.
text_B: Thermally modified wood is wood that has been modified by a controlled pyrolysis process of wood being heated -LRB- > 180 ° C -RRB- in absence of oxygen inducing some chemical changes to the chemical structures of cell wall components -LRB- lignin , cellulose and hemicellulose -RRB- in the wood in order to increase its durability .. wood. wood. pyrolysis. pyrolysis. oxygen. oxygen. lignin. lignin. cellulose. cellulose. hemicellulose. hemicellulose. durability. durable good. Low oxygen content prevents the wood from burning at these high temperatures .. wood. wood. oxygen. oxygen. Several different technologies are introduced using different media including nitrogen gas , steam and hot oil .
not_related.