With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Donnie Wahlberg started acting in 1995.
text_B: James Torbitt -LRB- c. 1822 -- 1895 -RRB- was an Irish spirit merchant based in Belfast .. Irish. Northern Ireland. Belfast. Belfast. From 1878 he exchanged several letters with Charles Darwin regarding the artificial breeding of potato plants that were resistant to potato blight that devastated Ireland in the Great Potato Famine .. Charles Darwin. Charles Darwin. artificial breeding. artificial breeding. potato. potato. potato blight. potato blight. Great Potato Famine. Great Potato Famine. Darwin also discussed this with Hooker , and others .
not_related.