construct/rlve largest rectangle

construct/rlve largest rectangle: a task in MathConstructOptimize-Envs-harbor (Harbor dataset). You are given 6 distinct lattice points, indexed 0..5: 0: (-5, -3) 1: (2, -1) 2: (-6, -1) 3: (3, -3) 4: (-3, -2) 5: (-4, 0)