| prov:value
| - If a vertical component, such as a tree 136, and a horizontal component, such as a horizon 137, are indicated in a tetragonal picture 131, defined by points a to d, as shown in FIG. 25, the vertical component is arranged, as an example, in coincidence with or parallel to a line segment interconnecting points of golden section of line segments ab and cd, while the horizontal component is arranged,
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