![\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [blue] at (0,0.2) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35,\y) {\scriptsize$\bullet$};\node [red] at (0.55,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 1};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [red] at (0.275+unit,unit) {\scriptsize$\bullet$};\node [blue] at (0.275+unit,-unit) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35+unit*2,\y) {\scriptsize$\bullet$};\node [red] at (0.55+unit*2,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x+unit*2,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x+unit*2,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 2};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\foreach \x in {0-unit,0+unit} \node [blue] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0-unit,0+unit} \node [blue] at (\x,-0.2) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35,\y) {\scriptsize$\bullet$};\node [red] at (0.55,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 3};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [red] at (0.275+unit,unit) {\scriptsize$\bullet$};\node [blue] at (0.275+unit,-unit) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35+unit*2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.75+unit*2,\y) {\scriptsize$\bullet$};\node [red] at (0.75+unit*2,0.25) {\scriptsize$+$};\node [red] at (0.55+unit*2,0) {\sffamily\bfseries O};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 4};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [blue] at (-0.2,0.25) {\scriptsize$+$};\foreach \y in {-unit,unit} \node [red] at (0.35,\y) {\scriptsize$\bullet$};\node [red] at (0.55,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 5};\end{tikzpicture}](https://gaia-sb.iwate-med.ac.jp/pharm/filter/tex/pix.php/dd0c466e45822a9b38446b86e98c230e.svg "\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [blue] at (0,0.2) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35,\y) {\scriptsize$\bullet$};\node [red] at (0.55,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 1};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [red] at (0.275+unit,unit) {\scriptsize$\bullet$};\node [blue] at (0.275+unit,-unit) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35+unit*2,\y) {\scriptsize$\bullet$};\node [red] at (0.55+unit*2,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x+unit*2,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x+unit*2,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 2};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\foreach \x in {0-unit,0+unit} \node [blue] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0-unit,0+unit} \node [blue] at (\x,-0.2) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [red] at (0.35,\y) {\scriptsize$\bullet$};\node [red] at (0.55,0) {\sffamily\bfseries O};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,0.2) {\scriptsize$\bullet$};\foreach \x in {0.55-unit,0.55+unit} \node [red] at (\x,-0.2) {\scriptsize$\bullet$};\node at (0.2,-0.5) {\sffamily\bfseries\tiny 3};\end{tikzpicture}\qquad\begin{tikzpicture}[declare function = {unit=0.07;}]\node [blue] {\sffamily\bfseries N};\foreach \y in {-unit,unit} \node [blue] at (-0.2,\y) {\scriptsize$\bullet$};\foreach \y in {-unit,unit} \node [blue] at (0.2,\y) {\scriptsize$\bullet$};\node [red] at (0.275+unit,unit) {\scriptsize$\bullet$};\node [blue] at (0.275+unit,-unit) {\scriptsize$\bullet$};\foreach \y in 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\begin{tikzpicture}[
declare function = {
unit=0.07;
}]
\node [blue] {\sffamily\bfseries N};
\foreach \y in {-unit,unit}
\node [blue] at (-0.2,\y) {\scriptsize$\bullet$};
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\node [blue] at (0.2,\y) {\scriptsize$\bullet$};
\node [blue] at (0,0.2) {\scriptsize$\bullet$};
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\node [red] at (0.35,\y) {\scriptsize$\bullet$};
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\node [red] at (\x,0.2) {\scriptsize$\bullet$};
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\node [red] at (\x,-0.2) {\scriptsize$\bullet$};
\node at (0.2,-0.5) {\sffamily\bfseries\tiny 1};
\end{tikzpicture}
\qquad
\begin{tikzpicture}[
declare function = {
unit=0.07;
}]
\node [blue] {\sffamily\bfseries N};
\foreach \y in {-unit,unit}
\node [blue] at (-0.2,\y) {\scriptsize$\bullet$};
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\node [blue] at (0.2,\y) {\scriptsize$\bullet$};
\node [red] at (0.275+unit,unit) {\scriptsize$\bullet$};
\node [blue] at (0.275+unit,-unit) {\scriptsize$\bullet$};
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\node [red] at (0.35+unit*2,\y) {\scriptsize$\bullet$};
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\end{tikzpicture}
\qquad
\begin{tikzpicture}[
declare function = {
unit=0.07;
}]
\node [blue] {\sffamily\bfseries N};
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\node [blue] at (0.2,\y) {\scriptsize$\bullet$};
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\node [red] at (\x,-0.2) {\scriptsize$\bullet$};
\node at (0.2,-0.5) {\sffamily\bfseries\tiny 3};
\end{tikzpicture}
\qquad
\begin{tikzpicture}[
declare function = {
unit=0.07;
}]
\node [blue] {\sffamily\bfseries N};
\foreach \y in {-unit,unit}
\node [blue] at (-0.2,\y) {\scriptsize$\bullet$};
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\end{tikzpicture}
\qquad
\begin{tikzpicture}[
declare function = {
unit=0.07;
}]
\node [blue] {\sffamily\bfseries N};
\foreach \y in {-unit,unit}
\node [blue] at (-0.2,\y) {\scriptsize$\bullet$};
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