With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jet Li went on permanent hiatus from Wushu at age 19.
text_B: Stultutragus fenestratus is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Stultutragus. Stultutragus. beetle. beetle. It was described by Lucas in 1857 .
not_related.