With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Glen Campbell is an award-winning rock and country music singer.
text_B: The Sarsfield Grenadier Guards were a military company from California in the nineteenth century , mustered on July 29 , 1870 , in Sacramento .. California. California. Sacramento. Sacramento, California. They were named after the Irish Jacobite Patrick Sarsfield , 1st Earl of Lucan .. Its tradition is continued in Company B of the 184th Infantry Regiment .. 184th Infantry Regiment. 184th Infantry Regiment ( United States )
not_related.