With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Wolfman's screenplay was written by an American BAFTA-nominated screenwriter.
text_B: In epidemiology , lagging -LRB- or exposure lagging -RRB- means excluding the exposure in a time period before registration of an outcome .. epidemiology. epidemiology. It may be motivated by that the actual outcome had actually occurred before the registration of it , and that the last exposure before registration did not contribute to the case .. For example , when studying risk factors of cancer , the cancer process may have been triggered long before actual diagnosis of cancer , and that therefore any exposure to risk factors in the lag time between may be unimportant .. It can be used to mitigate protopathic bias , that is , when a treatment for the first symptoms of a disease or other outcome appear to cause the outcome .. protopathic bias. protopathic bias. Protopathic bias is a potential bias when there is a lag time from the first symptoms and start of treatment before actual diagnosis .
not_related.