With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Penny Dreadful premiered on May 25.
text_B: John Mactaggart may refer to  :. Sir John Mactaggart , 1st Baronet -LRB- 1867 -- 1956 -RRB-. Sir John Auld Mactaggart , 2nd Baronet -LRB- 1898 -- 1960 -RRB- , of the Mactaggart Baronets. Mactaggart Baronets. Mactaggart Baronets. Sir Ian Auld Mactaggart , 3rd Baronet -LRB- 1923 -- 1987 -RRB- , of the Mactaggart Baronets. Mactaggart Baronets. Mactaggart Baronets. Sir John Auld Mactaggart , 4th Baronet -LRB- b. 1951 -RRB- , of the Mactaggart Baronets. Mactaggart Baronets. Mactaggart Baronets. John Mactaggart of Kilkivan , Queensland
not_related.