Does the subject want to ask "what is the license plate number of Shenyang sprinkler?" Seven people. The license plate number of sprinkler is composed of a Chinese character, a letter and five digits, that is, seven digits, in which Liao A represents the province or municipality directly under the central government where the vehicle is located, and the letter represents the prefecture-level city or other unit where the vehicle is located, and the digits are randomly assigned.