261313, 261316, 261321, 261509, 261713, 280105 - Two quadrilaterals. Quadrilaterals touching or intersecting. Quadrilaterals that are completely or partially shaded. Polygons made of geometric figures, objects, humans, plants or animals. Letters or words underlined and/or overlined by one or more strokes or lines. 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.