With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Michelle Obama was married to a president.
text_B: First Lady of the United States -LRB- FLOTUS -RRB- is the informal but accepted title held by the wife of the President of the United States , concurrent with the president 's term of office .. President of the United States. President of the United States. Although the first lady 's role has never been codified or officially defined , she figures prominently in the political and social life of the nation .. Melania Trump is the current First Lady .. Melania Trump. Melania Trump. While the title was not in general use until much later , Martha Washington , the wife of George Washington , the first U.S. President -LRB- 1789 -- 1797 -RRB- , is considered to be the inaugural First Lady of the United States .. Martha Washington. Martha Washington. George Washington. George Washington. During her lifetime she was often referred to as `` Lady Washington '' .. Since the 1790s the role of first lady has changed considerably .. It has come to include involvement in political campaigns , management of the White House , championship of social causes , and representation of the president at official and ceremonial occasions .. White House. White House. Because first ladies now typically publish their memoirs , which are viewed as potential sources of additional information about their husbands ' administrations , and because the public is interested in these increasingly independent women in their own right , first ladies frequently remain a focus of attention long after their husbands ' terms of office have ended .. Additionally , over the years individual first ladies have held influence in a range of sectors , from fashion to public opinion on policy .. Historically , should a president be unmarried , or a widower , the president usually asks a relative or friend to act as White House hostess .. White House. White House. There are five living former first ladies  : Rosalynn Carter , wife of Jimmy Carter ; Barbara Bush , wife of George H. W. Bush ; Hillary Clinton , wife of Bill Clinton ; Laura Bush , wife of George W. Bush ; and Michelle Obama , wife of Barack Obama .. Rosalynn Carter. Rosalynn Carter. Jimmy Carter. Jimmy Carter. Barbara Bush. Barbara Bush. George H. W. Bush. George H. W. Bush. Hillary Clinton. Hillary Clinton. Bill Clinton. Bill Clinton. Laura Bush. Laura Bush. George W. Bush. George W. Bush. Michelle Obama. Michelle Obama. Barack Obama. Barack Obama
related.