With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The novel Gravity's Rainbow was written by Thomas Pynchon.
text_B: Tudorel Stoica -LRB- born 7 September 1954 in Braila -RRB- is a Romanian retired footballer who played as a central midfielder .. Braila. Braila. footballer. Association football. central midfielder. Midfielder#Central midfielder
not_related.