context: -LRB- CNN -RRB- -- They 're big , strong , and fierce -- and they wear little blue booties . The police dogs in Duesseldorf , Germany are now patrolling the pavement in protective shoes that their police-officer handlers strap onto their paws . The reason ? Too many glass shards left by beer drinkers in the city center , said Andre Hartwich , a spokesman for police in Duesseldorf . `` We wondered how can we protect our dogs ' feet against glass , '' said Hartwich . `` We looked on the Internet and found these shoes . '' Beer drinkers along the Rhine River and in the city 's Altstadt , or Old Town , often discard beer bottles on pebbled walkways . Broken glass poses a problem for the police force 's 20 German Shepherds and Belgian Shepherds , Hartwich said . In addition , hooligans and vandals leave behind glass shards around New Year 's Eve and during the city 's famous Carnival celebrations . So what 's a dog to do ? Their handlers shelled out 60 euros -- $ 89 -- for shoes that are also worn by dogs who walk on ice in Alaska . Dogs need a month of training to get used to wearing the shoes , Hartwich said . `` We have to condition the dogs to the shoes , '' he said . E-mail to a friend
question: What do dog shoes cost ?
answers: 60 euros
content_span_normalized_text: their handlers shelled out sixty euros -- $ eighty-nine -- for shoes that are also worn by dogs who walk on ice in alaska .
question_normalized_text: what do dog shoes cost ?
context_asr: THEIR BIG STRONG AND FAIR AND THEY WEAR LITTLE BLUE BOOTES THE POLICE DOGS IN DLDOR GERMANY ARE NOW PATROLLING THE PAVEMENT IN PROTECTIVE SHOES THAT THE POLICE OFFICER HANDLERS STRAP ON TO THEIR PAWS THE REASON TOO MANY GLASS SHARDS LEFT BY BEER DRINKERS IN THE CITY CENTER SAID ANDREY HARTWITCH A SPOKESMAN FOR POLICE IN DSLDOR WE WONDERED HOW WE CAN PROTECT OUR DOG'S FEET AGAINST GLASS SAID HARTWITCH WE LOOKED ON THE ENTRINET AND FOUND THESE SHOWS BEER DRINKERS ALONG THE RIN RIVER IN THE CITY'S ALTAD OR OLD TIN OFTEN DISCARD BEER BOTTLES ON PELED WAKWAYS BROKEN GLASS POSES A PROBLEM FOR THE POLICE FORCES TWENTY GERMAN SHEPHERDS AND BELGIAN SHEPHERDS HARTWICH SAID IN ADDITION HOLIGANS AND VANDALS LEAVE BEHIND GLASS SHARDS AROUND NEW YEARS EVE AND DURING THE CITY'S FAMOUS CARNIVAL CELEBRATIONS SO WHAT'S A DOG TO DO THEIR HANDLERS SHELLED OUT SIXTY ROS AT NINE DOLLARS FOR SHOWS THAT ARE ALSO WORN BY DOGS WHO WALK ON ICE IN ALASKA DOGS NEED A MONTH OF TRAINING TO GET USED TO WEARING THE SHOES HARTWITCH SAID WE HAVE TO CONDITION THE DOGS TO THE SHOES HE SAID 
question_asr: WHAT DO DOGS SHE HAS CAST 