With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A Song of Ice and Fire is by a person born after 1948.
text_B: Rana pueyoi is an extinct species of large frog from Early Miocene of Spain .. Miocene. Miocene. Rana. Rana ( genus ). frog. frog. Spain. Spain
not_related.