A first computing device receives a first request from a client computing device, wherein the first request includes a markup language request. Movement of an operator located at a side of the vehicle is identified with a plurality of sensors located in the vehicle and the vehicle is moved in a path that maintains the operator at the side of the vehicle while the operator is moving. The eye shield attachment has a lens and a right and a left structure. The biasing device biases one of the first and second vane rotors in the advance direction, and biases the other one in the retard direction. Application of an inventive composition is accompanied or immediately followed by a rise in the viscosity, such that the composition displays improved initial strength and a lower propensity to slump.