With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mark Zuckerberg attended Harvard.
text_B: Irrel is a municipality in the district Bitburg-Prum , in Rhineland-Palatinate , Germany .. Bitburg-Prum. Bitburg-Prum. Rhineland-Palatinate. Rhineland-Palatinate. Germany. Germany. Prum. Prum River. Bitburg. Bitburg. Irrel. Irrel ( Verbandsgemeinde ). It is situated in the Eifel , near the border with Luxembourg , at the confluence of the rivers Prum and Nims .. Eifel. Eifel. Luxembourg. Luxembourg. Prum. Prum River. Nims. Nims ( river ). It is located approximately 15 km south-west of Bitburg and 5 km north-east of Echternach .. Bitburg. Bitburg. Echternach. Echternach. Irrel was the seat of the former Verbandsgemeinde -LRB- `` collective municipality '' -RRB- Irrel .. Verbandsgemeinde. Verbandsgemeinde. Irrel. Irrel ( Verbandsgemeinde ). Since 1 July 2014 it is part of the Verbandsgemeinde Sudeifel .. Verbandsgemeinde. Verbandsgemeinde. Sudeifel. Sudeifel ( Verbandsgemeinde )
not_related.