With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Budapest was the center of interest or activity during the Hungarian Revolution of 1848.
text_B: Mark Blake -LRB- died 27 June 1886 -RRB- was an Irish politician .. Irish. Ireland. He was elected in 1840 as a Member of Parliament for Mayo , and held the seat until 1846 .. Member of Parliament. Member of Parliament. Mayo. Mayo ( UK Parliament constituency )
not_related.