With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steven Spielberg directed a film.
text_B: A water fight is a type of mock combat using various water-dispensing devices to soak opponents .. mock combat. mock combat. Everything from buckets to balloons to water guns and even cupped hands cradling water can be applied in a water fight .. There are many different levels of game play used by those engaging in water fights , from quick , casual fights to long , objective-oriented-style water warfare campaigns , and tournament-style games .. In most but not all cases , the common objective is to soak -LRB- spray with water -RRB- one 's opponents while trying to remain dry .
not_related.