With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Game of Thrones appeared on HBO.
text_B: Montecatini Val di Cecina is a small hilltown and comune in the province of Pisa in Tuscany -LRB- central Italy -RRB- .. Tuscany. Tuscany. Pisa. Pisa. comune. comune. province of Pisa. province of Pisa. Italy. Italy. Located approximatively 60 km south of Pisa , the medieval town sits on the Poggio la Croce hill overlooking the Cecina Valley and the larger hilltown of Volterra , which lies just 15 km away .. Pisa. Pisa. Cecina Valley. Cecina ( river ). Volterra. Volterra. Local agriculture and the old copper mine provided Montecatini Val di Cecina with a degree of prosperity in the early Middle Ages .. Like many Tuscan hilltop towns , its medieval aspect has been preserved precisely because lack of economic development .. Today , Montecatini Val di Cecina is enjoying a small economic revival through tourism though on a modest scale .
not_related.