    Sentence 1 The blue-chip Dow Jones  industrial average .DJI climbed 179.97  points , or 2.09 percent , to 8,781.35 ,  ending at its highest level since mid-  January .    Sentence 2: The blue-chip Dow Jones  industrial average .DJI tacked on 97  points, or 1.14 percent , to 8,699.