With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leonardo da Vinci epitomized the Renaissance humanist ideal by studying classical antiquity.
text_B: The Etched City is the first novel -LRB- and the only one published to date -RRB- of the Australian science-fiction writer K. J. Bishop .. K. J. Bishop. K. J. Bishop. It was published for the first time by Prime Books in 2003 -LRB- cover art done by K. J. Bishop herself -RRB- , then by Tor  /  Pan Macmillan -LRB- in 2004 and 2005 -RRB- and by Bantam Spectra -LRB- in 2004 -RRB- .. K. J. Bishop. K. J. Bishop. Prime Books. Prime Books. Tor  /  Pan Macmillan. Macmillan Publishers. Bantam Spectra. Bantam Spectra
not_related.