With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Robert F. Kennedy ceased to be alive in June of 1968.
text_B: The Ostrovul Mare Bridge is a suspension bridge over the Gogosu branch of the Danube , close to the Iron Gate II Hydro Power Plant and part of the Iron Gate II border crossing point between Romania and Serbia .. Danube. Danube. suspension bridge. suspension bridge. Iron Gate II Hydro Power Plant. Iron Gate II Hydro Power Plant. Romania. Romania. Serbia. Serbia. The bridge is 360 m in length with a main span of 240 m , and is constructed as a suspension bridge .. suspension bridge. suspension bridge
not_related.