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==Common conventions== | ==Common conventions== | ||
*Blue is superior and green is inferior. ''The sky is blue and the grass is green''. | *Blue is superior and green is inferior. Why? ''The sky is blue and the grass is green''. | ||
*Green is right and left is red. Why? ''Planes and ships have green right and red left''. | |||
**The above can be remembered by sailors that drink [[Wikipedia:Port wine|port wine]] with ''no red port left''; red is port. | |||
==See also== | ==See also== |
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