With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Al Capone had neurosyphilis.
text_B: A time bomb -LRB- or a timebomb , time-bomb -RRB- is a bomb whose detonation is triggered by a timer .. bomb. bomb. detonation. detonate. timer. timer. The use -LRB- or attempted use -RRB- of time bombs has been for various purposes including insurance fraud , terrorism , assassination , sabotage and warfare .. insurance fraud. insurance fraud. They are a popular feature in fictional thriller and action films as they offer a way of imparting a dramatic sense of urgency .. films. films
not_related.