With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Chris Terrio was born in the 1970s.
text_B: Click Click Snap is a 2007 book by Sean McGowan .. Sean McGowan. Sean McGowan. It is a work of literary nonfiction and a photographic novel -LRB- but not a photo novel -RRB- .. literary nonfiction. creative nonfiction. photo novel. photo novel. The book has been released into the public domain .. public domain. public domain. The full book can be read for free -LRB- see source -RRB- .
not_related.