With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: He previously served in the U.S. Senate representing Illinois from 2005 to 2008 and in the Illinois State Senate from 1997 to 2004.
text_B: He previously served in the U.S. Senate representing Illinois from 2006 to 2008 and in the Illinois State Senate from 1997 to 2004.
contradiction.