With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arnold Schwarzenegger is a bodybuilding icon.
text_B: The Stryama -LRB- Стряма , known in Antiquity as Syrmus -RRB- is a river in southern Bulgaria , an important left tributary of the Maritsa .. Maritsa. Maritsa. Bulgaria. Bulgaria. The river is 110.1 km long and has a drainage basin of 1,394 km ² .. drainage basin. drainage basin. The Stryama takes it source from the Balkan Mountains under Vezhen Peak , named Kameniditsa in this section , turning east at Stryama Station to pass close to Klisura and turn southeast at Rozino entering the Karlovo Plain .. Vezhen Peak. Vezhen Peak. Balkan Mountains. Balkan Mountains. Klisura. Klisura ( Bulgaria ). Rozino. Rozino. It then makes a turn south at Banya , forming the Stremski prolom -LRB- Stryama Gorge -RRB- between the mountains Sashtinska and Sarnena Sredna Gora , where the Dalga Vada separates from it to later flow into the Maritsa as a separate river .. Maritsa. Maritsa. Banya. Banya ( Plovdiv ). Sredna Gora. Sredna Gora. Afterwards the Stryama passes a number of villages to empty into the Maritsa 15 km east of Plovdiv .. Maritsa. Maritsa. Plovdiv. Plovdiv. Category  : Rivers of Bulgaria. Bulgaria. Bulgaria. Category  : Landforms of Plovdiv Province. Plovdiv. Plovdiv
not_related.