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Nature
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natural phenomena
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light
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colours, pigments, and paints
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colours, pigments, and paints (GREY)
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15 colours, pigments, and paints: black
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14 colours, pigments, and paints: white
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7 colours, pigments, and paints: blue
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6 colours, pigments, and paints: yellow
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4 colours, pigments, and paints: red
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4 colours, pigments, and paints (ORANGE)
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2 colours, pigments, and paints (PINK)
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2 colours, pigments, and paints: green
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2 colours, pigments, and paints (BEIGE)
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And 2 more...
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8 shadow
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1 reflection (light in general)
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3 earth, world as celestial body
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1 time
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38 Society, Civilization, Culture
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22 Abstract, Non-representational Art
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13 Abstract Ideas and Concepts
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12 Human Being, Man in General