For instance, two symbols that denote a hand and a person would have different, but related meanings in different corners:
For instance, two symbols that denote a hand and a person would have different, but related meanings in different corners:
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[[File:Gliss purposes.jpg|thumb|center]]
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Notice that in some cases one can combine corners by drawing a line. In the example above the line is on top of the gliss, meaning that the gliss would be located between sun and air on the plane.
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Each purpose has three corners, so there are 12 corners altogether. Each group of 3 corners might be somewhat related. For instance, Home's corners are Direction, Location and Force. So, if we want to describe someone changing their location (going somewhere) or changing direction (someone turns left), we would use the respective corners of Home. However, Force is used to form comparatives (faster, stronger), but also to refer to aging, passage of time and order of objects (first, second). One can argue that Force is similar to Direction and Location in a sense that it also describes movement between various properties.
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A corner sign with no additional symbols would mean the middle corner. An additional line would mean on of the other corners. In the example above, notice that agreeing with a person uses an additional line, to indicate a corner that is called "Thought" and deals with the changing of the state of mind: attitudes, opinions, beliefs, moods. If we would remove that line and instead use the middle corner, our gliss would attain the meaning of "honor person", frequently in the sense of promoting.