With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Harry Styles and his bandmates never released an album.
text_B: Ballistic impact is a high velocity impact by a small mass object , analogous to runway debris or small arms fire .. velocity. velocity. mass. mass. runway. runway. debris. debris. small arms. small arms. The simulation of ballistic impacts can be achieved with a light-gas gun or other ballistic launcher .. light-gas gun. light-gas gun. It is important to study the response of materials to ballistic impact loads .. Applications of this research include body armor , armored vehicles and fortified buildings , as well as the protection of essential equipment , such as the jet engines of an airliner .. armor. armor. fortified. fortified. airliner. airliner
not_related.