With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shakira founded a charity called Pies Descalzos Foundation.
text_B: Carpenterella may refer to  :. Carpenterella -LRB- fungus -RRB- , a fungus genus in the family Synchytriaceae. Carpenterella -LRB- moth -RRB- , an insect genus in the family Lymantriidae
not_related.