241702, 241725, 261121, 270101, 280105 - Male and female biological symbols. Other notational signs and symbols, including pH, hazardous materials symbols, degree sign(�), pound sign(#), equal signs(=), and other mathematical symbols. Rectangles that are completely or partially shaded. Letters or numerals, including punctuation, forming representations of human beings or parts of human beings. Inscriptions in Greek characters, including the following: Α α Β β Γ γ Δ δ Ε ε Ζ ζ Η η Θ θ Ι ι Κ κ Λ λ Μ μ Ν ν Ξ ξ Ο ο Π π Ρ ρ ς Σ σ Τ τ Υ υ Φ φ Χ χ Ψ ψ Ω ω.