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| − | This image was generated using the following PostScript source and converted to PNG format using Adobe PhotoShop CS5.1.
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| − | <pre>
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| − | %!PS-Adobe-3.0 EPSF-3.0
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| − | %%BoundingBox: -150 -100 150 100
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| − | /u {100 mul} def
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| − | /umoveto {u exch u exch moveto} def
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| − | /ulineto {u exch u exch lineto} def
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| − | /uline {newpath umoveto ulineto stroke} def
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| − | /circle {newpath 0 360 arc stroke} def
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| − | /ctext {
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| − | 3 dict begin
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| − | /text exch def
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| − | /y exch def
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| − | /x exch def
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| − | gsave
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| − | 0 0 moveto
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| − | text true charpath pathbbox
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| − | exch pop 3 -1 roll pop
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| − | exch sub
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| − | grestore
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| − | 2 div neg y add
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| − | x text stringwidth pop 2 div sub
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| − | exch moveto
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| − | text show
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| − | end
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| − | } def
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| − | /node {
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| − | 4 dict begin
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| − | /text exch def
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| − | /r exch def
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| − | /y exch def
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| − | /x exch def
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| − | x y r circle
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| − | x y text ctext
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| − | end
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| − | } def
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| − | % x1 y1 r1 x2 y2 r2
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| − | /ccline {
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| − | 7 dict begin
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| − | /r2 exch def
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| − | /y2 exch def
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| − | /x2 exch def
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| − | /r1 exch def
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| − | /y1 exch def
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| − | /x1 exch def
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| − | /angle y2 y1 sub x2 x1 sub atan def
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| − | newpath
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| − | x1 r1 angle cos mul add
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| − | y1 r1 angle sin mul add
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| − | moveto
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| − | x2 r2 angle cos mul sub
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| − | y2 r2 angle sin mul sub
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| − | lineto
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| − | stroke
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| − | end
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| − | } def
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| | | | |
| − | /Arial findfont
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| − | 21 scalefont
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| − | setfont
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| − |
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| − | 0.8 setlinewidth
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| − | 8 dict begin
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| − | /A { 0.15 u 0.70 u 0.15 u } def
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| − | /B { -0.60 u 0.00 u 0.15 u } def
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| − | /C { 0.90 u 0.00 u 0.15 u } def
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| − | /D { -1.20 u -0.70 u 0.15 u } def
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| − | /E { -0.60 u -0.70 u 0.15 u } def
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| − | /F { -0.00 u -0.70 u 0.15 u } def
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| − | /G { 0.60 u -0.70 u 0.15 u } def
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| − | /H { 1.20 u -0.70 u 0.15 u } def
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| − | A (A) node
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| − | B (B) node
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| − | C (C) node
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| − | D (D) node
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| − | E (E) node
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| − | F (F) node
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| − | G (G) node
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| − | H (H) node
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| − | A B ccline
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| − | B D ccline
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| − | B E ccline
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| − | B F ccline
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| − | A C ccline
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| − | C G ccline
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| − | C H ccline
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| − | end
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| − | </pre>
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