With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Respiratory disease can get classified by what organ is involved.
text_B: Balthere of Tyninghame -LRB- later Baldred -RRB- was a Northumbrian hermit and abbot , resident in East Lothian during the 8th century .. East Lothian. East Lothian. hermit. hermit. abbot. abbot
not_related.