Task: Text Categorization
Input (English): This color indicates the reactivity of a chemical on the NFPA 704 label, and at 1% efficiency, DPSS lasers of this color are the most expensive per unit of power. The Briggs-Rauscher reaction abruptly changes to blue from this color, which is emitted by stars of spectral classes F and G. Proteins with aromatic rings turn this color when reacted with nitric acid. The Fraunhofer line in the solar spectrum is of this color, which denotes the number four on resistors. (*) Helium was first observed as a spectral line of this color, and xanophylls and some cartenoids are pigments of this color. Sodium is used in fireworks to create this color, and uranium oxide is also known as this color of cake. Sulfur is commonly of, for ten points, what color, which is a primary color along with red and blue
Output (English): Science