With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kick-Ass is based on a comic book by a writer.
text_B: TetraKO is a fire suppression agent marketed by EarthClean Corporation , based in South St. Paul , Minnesota .. fire suppression. firefighting. It takes the form of a white powder , which is intended to be mixed with water and sprayed on structures or foliage using unmodified firefighting equipment , up to a day in advance of a wildfire .
not_related.