With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Killer whales can be found in a variety of marine environments since 2006.
text_B: A foam pump , or squeeze foamer and dispensing device is a non-aerosol way of dispensing liquid materials .. aerosol. aerosol spray. The foam pump outputs the liquid in the form of foam and it is operated by squeezing .. The parts of the foam pump are similar to those of the other pump devices .. Many times the foaming pump comes with a protective cap .. Most of the components are made from polypropylene -LRB- PP -RRB- .. polypropylene. polypropylene
not_related.