With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Guam has same-sex marriage legalized.
text_B: Donal Keogan -LRB- born 13 April 1991 -RRB- is a Gaelic footballer for the Meath senior football team .. Meath. Meath GAA. Donal is currently the captain of the senior Meath team and also plays club football for his local club Rathkenny .. Rathkenny. Rathkenny GAA. Meath. Meath GAA. Donal is also currently studying for his PhD in Pharmaceutical and Medicinal chemistry in the Royal College of Surgeons in Ireland .. Ireland. Ireland
not_related.