\ifthenelse{\boolean{DRAWtwothreeEtwothreeE}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEtwothreeE, linecolor=mygray2]{->}{s23E}{t23E}}{}
\ifthenelse{\boolean{DRAWtwothreeEfourE}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEfourE, linecolor=mygray2]{->}{s23E}{t4E}}{}
\ifthenelse{\boolean{DRAWtwothreeEfiveE}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEfiveE, linecolor=mygray2]{->}{s23E}{t5E}}{}
\ifthenelse{\boolean{DRAWtwothreeEsixE}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEsixE, linecolor=mygray2]{->}{s23E}{t6E}}{}

\ifthenelse{\boolean{DRAWtwothreeEtwothreeI}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEtwothreeI, linecolor=mygray2]{->}{s23E}{t23I}}{}
\ifthenelse{\boolean{DRAWtwothreeEfourI}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEfourI, linecolor=mygray2]{->}{s23E}{t4I}}{}
\ifthenelse{\boolean{DRAWtwothreeEfiveI}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEfiveI, linecolor=mygray2]{->}{s23E}{t5I}}{}
\ifthenelse{\boolean{DRAWtwothreeEsixI}}{\nccurve[angleA=0, angleB=180, linewidth=\twothreeEsixI, linecolor=mygray2]{->}{s23E}{t6I}}{}

% From 4E
\ifthenelse{\boolean{DRAWfourEtwothreeE}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEtwothreeE, linecolor=mygray2]{->}{s4E}{t23E}}{}
\ifthenelse{\boolean{DRAWfourEfourE}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEfourE, linecolor=mygray2]{->}{s4E}{t4E}}{}
\ifthenelse{\boolean{DRAWfourEfiveE}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEfiveE, linecolor=mygray2]{->}{s4E}{t5E}}{}
\ifthenelse{\boolean{DRAWfourEsixE}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEsixE, linecolor=mygray2]{->}{s4E}{t6E}}{}

\ifthenelse{\boolean{DRAWfourEtwothreeI}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEtwothreeI, linecolor=mygray2]{->}{s4E}{t23I}}{}
\ifthenelse{\boolean{DRAWfourEfourI}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEfourI, linecolor=mygray2]{->}{s4E}{t4I}}{}
\ifthenelse{\boolean{DRAWfourEfiveI}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEfiveI, linecolor=mygray2]{->}{s4E}{t5I}}{}
\ifthenelse{\boolean{DRAWfourEsixI}}{\nccurve[angleA=0, angleB=180, linewidth=\fourEsixI, linecolor=mygray2]{->}{s4E}{t6I}}{}

% From 5E
\ifthenelse{\boolean{DRAWfiveEtwothreeE}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEtwothreeE, linecolor=mygray2]{->}{s5E}{t23E}}{}
\ifthenelse{\boolean{DRAWfiveEfourE}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEfourE, linecolor=mygray2]{->}{s5E}{t4E}}{}
\ifthenelse{\boolean{DRAWfiveEfiveE}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEfiveE, linecolor=mygray2]{->}{s5E}{t5E}}{}
\ifthenelse{\boolean{DRAWfiveEsixE}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEsixE, linecolor=mygray2]{->}{s5E}{t6E}}{}


\ifthenelse{\boolean{DRAWfiveEtwothreeI}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEtwothreeI, linecolor=mygray2]{->}{s5E}{t23I}}{}
\ifthenelse{\boolean{DRAWfiveEfourI}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEfourI, linecolor=mygray2]{->}{s5E}{t4I}}{}
\ifthenelse{\boolean{DRAWfiveEfiveI}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEfiveI, linecolor=mygray2]{->}{s5E}{t5I}}{}
\ifthenelse{\boolean{DRAWfiveEsixI}}{\nccurve[angleA=0, angleB=180, linewidth=\fiveEsixI, linecolor=mygray2]{->}{s5E}{t6I}}{}

% From 6E
\ifthenelse{\boolean{DRAWsixEtwothreeE}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEtwothreeE, linecolor=mygray2]{->}{s6E}{t23E}}{}
\ifthenelse{\boolean{DRAWsixEfourE}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEfourE, linecolor=mygray2]{->}{s6E}{t4E}}{}
\ifthenelse{\boolean{DRAWsixEfiveE}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEfiveE, linecolor=mygray2]{->}{s6E}{t5E}}{}
\ifthenelse{\boolean{DRAWsixEsixE}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEsixE, linecolor=mygray2]{->}{s6E}{t6E}}{}


\ifthenelse{\boolean{DRAWsixEtwothreeI}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEtwothreeI, linecolor=mygray2]{->}{s6E}{t23I}}{}
\ifthenelse{\boolean{DRAWsixEfourI}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEfourI, linecolor=mygray2]{->}{s6E}{t4I}}{}
\ifthenelse{\boolean{DRAWsixEfiveI}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEfiveI, linecolor=mygray2]{->}{s6E}{t5I}}{}
\ifthenelse{\boolean{DRAWsixEsixI}}{\nccurve[angleA=0, angleB=180, linewidth=\sixEsixI, linecolor=mygray2]{->}{s6E}{t6I}}{}

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