With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nepal borders India to the west.
text_B: Monthly Notices of the Royal Astronomical Society -LRB- MNRAS -RRB- is a peer-reviewed scientific journal covering research in astronomy and astrophysics .. astrophysics. astrophysics. Royal Astronomical Society. Royal Astronomical Society. peer-reviewed. Peer review. scientific journal. scientific journal. astronomy. astronomy. It has been in continuous existence since 1827 and publishes letters and papers reporting original research in relevant fields .. Despite the name , the journal is no longer monthly nor does it carry the notices of the Royal Astronomical Society .. Royal Astronomical Society. Royal Astronomical Society
not_related.