With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Hogwarts School of Witchcraft and Wizardry can be shortened to Hogwarts.
text_B: A HydroSack or a HydroSnake is a brand name for a flood control sandbag alternative made by Gravitas International of Cheshire , North West England .. brand name. brand name. flood control. flood control. sandbag. sandbag. Cheshire. Cheshire. North West England. North West England. They are very lightweight and thin until they come into contact with water , then they begin to retain water until they have reached capacity .. The devices then resist any further water excess .. These can be used to absorb , resist and redirect flowing water .
not_related.