With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: There are no social spider species.
text_B: William Farrell , RIAI , -LRB- died 1851 -RRB- was a prominent Dublin-based Irish architect active throughout early to mid-nineteenth century Ireland , during the Georgian and early Victorian period , known particularly for his church and institutional designs .. RIAI. Royal Institute of the Architects of Ireland. Ireland. Ireland
not_related.