( [ ( specifier: "world.tree.birch.1", center: (12, 9, 10) ), ( specifier: "world.tree.birch.2", center: (12, 10, 10) ), ( specifier: "world.tree.birch.3", center: (9, 10, 10) ), ( specifier: "world.tree.birch.4", center: (9, 10, 10) ), ( specifier: "world.tree.birch.5", center: (9, 10, 10) ), ( specifier: "world.tree.birch.6", center: (9, 9, 10) ), ( specifier: "world.tree.birch.7", center: (10, 10, 10) ), ( specifier: "world.tree.birch.8", center: (9, 9, 10) ), ( specifier: "world.tree.birch.9", center: (9, 10, 10) ), ( specifier: "world.tree.birch.10", center: (9, 10, 10) ), ( specifier: "world.tree.birch.11", center: (9, 10, 10) ), ( specifier: "world.tree.birch.12", center: (9, 10, 10) ), ] )