With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The acting debut of Mick Jagger was in Performance (film).
text_B: Peterhouse School may be referring to. Peterhouse Boys ' School , in Mashonaland East , Zimbabwe. Peterhouse Girls ' School , in Mashonaland East , Zimbabwe. Peterhouse school of history. Peterhouse school of history. Peterhouse school of history
not_related.