With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Prussia became part of a unitary parliament.
text_B: Reiskirchen is a municipality in the district of Gießen , in Hesse , Germany and is located 11 km east of Gießen .. district of Gießen. Gießen ( district ). Hesse. Hesse. Germany. Germany. Gießen. Gießen
not_related.