(-4.7,-3.0) – (-4.3,-3.4); at (-4.7,-2.8) [$p_1$]{}; (-4.7,-5.0) – (-4.3,-4.6); at (-4.7,-5.2) [$p_2$]{}; (-1.3,-3.0) – (-1.7,-3.4); at (-1.3,-2.8) [$p_4$]{}; (-1.3,-5.0) – (-1.7,-4.6); at (-1.3,-5.2) [$p_3$]{}; (-3.1,-3.2) – (-3.5,-3.35); at (-3.2,-3.5) [$l_1$]{}; (-2.9,-4.8) – (-2.5,-4.65); at (-2.8,-4.5) [$l_2$]{}; at (-3.4,-2.85) [${R}$]{}; at (-2.6,-5.15) [${S}$]{}; at (-5.2,-3) [${M}$]{}; at (-5.2,-5) [${N}$]{}; at (-0.8,-5) [${P}$]{}; at (-0.8,-3) [${Q}$]{}; at (-4,-4) [$\mathcal{A}^{(0)}$]{}; at (-2,-4) [$\mathcal{A}^{(0)}$]{};

\

(-5,-3) – (-4,-4); (-5,-5) – (-4,-4); (-2,-4) – (-1,-3); (-2,-4) – (-1,-5); (-3,-4) circle (1cm); (-3,-2.5) – (-3,-5.5); (-4.7,-3.0) – (-4.3,-3.4); at (-4.7,-2.8) [$p_2$]{}; (-4.7,-5.0) – (-4.3,-4.6); at (-4.7,-5.2) [$p_4$]{}; (-1.3,-3.0) – (-1.7,-3.4); at (-1.3,-2.8) [$p_1$]{}; (-1.3,-5.0) – (-1.7,-4.6); at (-1.3,-5.2) [$p_3$]{}; (-3.1,-3.2) – (-3.5,-3.35); at (-3.2,-3.5) [$l_1$]{}; (-2.9,-4.8) – (-2.5,-4.65); at (-2.8,-4.5) [$l_2$]{}; at (-3.4,-2.85) [${R}$]{}; at (-2.6,-5.15) [${S}$]{}; at (-5.2,-3) [${N}$]{}; at (-5.2,-5) [${Q}$]{}; at (-0.8,-5) [${P}$]{}; at (-0.8,-3) [${M}$]{}; at (-4,-4) [$\mathcal{A}^{(0)}$]{}; at (-2,-4) [$\mathcal{A}^{(0)}$]{};

(-5,-3) – (-4,-4); (-5,-5) – (-4,-4); (-2,-4) – (-1,-3); (-2,-4) – (-1,-5); (-3,-4) circle (1cm); (-3,-2.5) – (-3,-5.5); (-4.7,-3.0) – (-4.3,-3.4); at (-4.7,-2.8) [$p_2$]{}; (-4.7,-5.0) – (-4.3,-4.6); at (-4.7,-5.2) [$p_3$]{}; (-1.3,-3.0) – (-1.7,-3.4); at (-1.3,-2.8) [$p_1$]{}; (-1.3,-5.0) – (-1.7,-4.6); at (-1.3,-5.2) [$p_4$]{}; (-3.1,-3.2) – (-3.5,-3.35); at (-3.2,-3.5) [$l_1$]{}; (-2.9,-4.8) – (-2.5,-4.65); at (-2.8,-4.5) [$l_2$]{}; at (-3.4,-2.85) [${R}$]{}; at (-2.6,-5.15) [${S}$]{}; at 