With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The 2011 FIFA U-20 World Cup was only a conference for world leaders.
text_B: Nationality words link to articles with information on the nation 's poetry or literature -LRB- for instance , Irish or France -RRB- .. Irish. Irish poetry. France. French poetry
not_related.