With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The National Library of India is India's largest library since 1900.
text_B: The Northern Andean paramo -LRB- NT1006 -RRB- is an ecoregion containing paramo vegetation above the treeline in the Andes of Colombia and Ecuador .. Colombia. Colombia. Ecuador. Ecuador. ecoregion. ecoregion. paramo. paramo. Andes. Andes. In the past , when the climate was cooler , the treeline and the paramo units were lower and the units were connected .. paramo. paramo. During the present warmer Holocene epoch the paramos have migrated uphill , shrinking and becoming isolated .. Holocene. Holocene. They contain many rare or endangered species , some of them restricted to a narrow area of one mountain or mountain range .. The ecoregion is relatively well preserved , but faces threats from over-grazing and farming .. ecoregion. ecoregion
not_related.