context: The most common European emergency number 112 (following Directive 2002/22 / EC - Universal Service Directive) and also standard on GSM mobile phone s. 112 is used in Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg , Republic of Macedonia, Malta, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine and the United Kingdom in addition to their other emergency numbers. [2] [3] [4] [5]
question: What is the number of the London emergency ambulance service?
answers.text: 112