context: PARIS , France -LRB- CNN -RRB- -- A Pablo Picasso sketchbook with 33 pencil drawings disappeared from a locked glass case in a museum in Paris overnight , the French Ministry of Culture announced Tuesday . The sketchbook was discovered missing from the Picasso Museum in Paris overnight . The police were immediately alerted , as was a special unit that combats the trade in stolen cultural artifacts . The sketchbook has a red varnished cover with the word `` Album '' inscribed on it in gold lettering , and measures 16 centimeters by 24 centimeters -LRB- 6 inches by 9 inches -RRB- . Picasso used the sketchbook between 1917 and 1924 when he was in his late 30s and early 40s . The period was extraordinarily eventful for the artist , including collaborations and tours with the Ballets Russes , his marriage to Olga Khokhlova , a dancer from the company , and the birth of his son Paul . Picasso was shifting from the famous Cubist style he helped create to his neo-Classical phase during the years covered by the sketchbook , according a biography on his official Web site . CNN 's Niki Cook contributed to this report
question: The artist used the sketchbook when ?
answers: between 1917 and 1924
content_span_normalized_text: picasso used the sketchbook between nineteen seventeen and nineteen twenty-four when he was in his late thirtys and early fortys .
question_normalized_text: the artist used the sketchbook when ?
context_asr: PARIS FRANCE A PABLO PACASL SKETCH BOOK WITH THIRTY THREE PENCIL DRAWINGS DISAPPEARED FROM A LOCKED GLASS CASE IN A MUSEUM IN PARIS OVER NIGHT THE FRENCH MINISTRY OF CULTURE ANNOUNCED TUESDAY THE SKETCH BOOK WAS DISCOVERED MISSING FROM THE PACASSA MUSEUM IN PARIS OVER NIGHT THE POLICE WERE IMMEDIATELY ALERTED AS WAS A SPECIAL UNIT THAT COMBATS THE TRADE AN STOLEN CULTURAL ARTEFFECTS THE SKETCH BOOK HAS A RED VARNISHED COVER WITH THE WORD ALBUM INSCRIBED ON IT IN GOLD LETTERING AND MEASURES SIXTEEN CENTIMETERS BY TWENTY FOUR CENTIMETERS SIX INCHES BY NINE INCHES PEASO USED THE SKETCH BOOK BETWEEN NINETEEN SEVENTEEN AND NINETEEN TWENTY FOUR WHEN HE WAS IN HIS LATE THIRTIES AND EARLY FORTIES THE PERIOD WAS EXTREMELY EVENTFUL FOR THE ARTIST INCLUDING COLLABORATIONS AND TOURS WITH THE BALLAD RUSSES HIS MARRIAGE TO OLGA COLOVA A DANCER FROM THE COMPANY AND THE BIRTH OF HIS SON PAUL PASO WAS SHIFTING FROM THE FAMOUS CUBID STILL HE HELPED CREATE TO HIS NEO CLASSICAL FAS DURING THE YEARS COVERED BY THE SKETCH BOOK ARCORDING A BIOGRAPHY ON HIS OFFICIAL WEBSIT 
question_asr: THE ARTIST USED A SKETCH BOOK WHEN 