With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Emily Browning was passed over for a role in The Echo of Thunder.
text_B: The Bombaso Formation is a geologic formation in Austria .. Formation. Formation ( stratigraphy ). Austria. Austria. geologic formation. Formation ( geology ). It preserves fossils dating back to the Carboniferous period .. Carboniferous. Carboniferous. fossils. fossils. period. Period ( geology )
not_related.