With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Room is an adaptation.
text_B: The Return of Tharn is a fantasy novel by Howard Browne .. Howard Browne. Howard Browne. fantasy novel. fantasy novel. It was first published in book form in 1956 by The Grandon Company in an edition of 500 copies , of which 350 were bound .. The Grandon Company. The Grandon Company. 1956 in literature. The novel was originally serialized in three parts in the magazine Amazing Stories beginning in October , 1948 .. Amazing Stories. Amazing Stories. The book is a sequel to Browne 's Warrior of the Dawn -LRB- 1943 -RRB- .
not_related.