[figure: E_{ij}; A_{i+1,j+1}; B_{i+1,j+1}; C_{i+1,j+1}; D_{i+1,j+1}; E_{i+1,j}; F_{i,j+1}; P_{i}.Q_{j}^{O}!chg; P_{i}.Q_{j}^{I}?chg; Q_{j}.P_{i}^{O}!quo; P_{i}.Q_{j−1}^{I}?quo; P_{i}.P_{i−1}^{O}!ini; P_{i}.P_{i−1}^{I}?ini; Q_{j}.P_{i}^{O}!chg; Q_{j}.P_{i}^{I}?chg; P_{i}.Q_{j}^{O}!quo]

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