A water-based coloring composition and a water-based coating composition with each of which the number of operation steps in dyeing, printing, painting, coating or the like can be significantly reduced. The wind turbine comprises a wind turbine housing, a hub mounted within the wind turbine housing, and a plurality of blades rotatably coupled with the hub and radially extending from the hub. The leaf spring is arranged on the outer side in the axial direction of the lower feeding roller with respect to the belt, so that the leaf spring biases the lower feeding roller. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. , and a molar ratio of formaldehydephenol of from about 1.