string, Pattern, Line, background, white, paper, 30 degree, straight, line, intersects, diamond, square, stripe, write, grey, decoration, page, blank, style, thin, geometric, striped, endless, graphic, template, repeat, diagonal, decorative, wall, prison, vector, boundary, crime, cage, forbidden, metal, link, protection, metallic, enclosure, design, texture, chain, net, grate, fence, grid, mesh, wire, black, abstract,