Ключевые слова: abstract, alarm, art, backdrop, background, banner, bended, blank, complex, concept, copy, curve, danger, design, diagram, draw, empty, folding, frame, graphic, ideas, ink, line, monitoring, paper, pattern, peak, placard, place, poster, research, result, science, scientific, space, structure, study, style, technology, template, test, trace, wallpaper, warning, wave,