Premise: Michelle Obama . Obama campaigned for her husband 's presidential bid throughout 2007 and 2008 , delivering a keynote address at the 2008 Democratic National Convention . She returned to speak at the 2012 Democratic National Convention , and again during the 2016 Democratic National Convention in Philadelphia , where she delivered a speech in support of the Democratic Presidential nominee , and fellow First Lady , Hillary Clinton .
Hypothesis: Michelle Obama spoke at two Democratic National Conventions.
Label: ENTAILMENT