[
    [
        "minecraft:copper_block",
        "minecraft:cut_copper",
        "minecraft:cut_copper_stairs",
        "minecraft:cut_copper_slab",
        "minecraft:waxed_copper_block",
        "minecraft:waxed_cut_copper",
        "minecraft:waxed_cut_copper_stairs",
        "minecraft:waxed_cut_copper_slab"
    ],
    [
        "minecraft:exposed_copper",
        "minecraft:exposed_cut_copper",
        "minecraft:exposed_cut_copper_stairs",
        "minecraft:exposed_cut_copper_slab",
        "minecraft:waxed_exposed_copper",
        "minecraft:waxed_exposed_cut_copper",
        "minecraft:waxed_exposed_cut_copper_stairs",
        "minecraft:waxed_exposed_cut_copper_slab"
    ],
    [
        "minecraft:weathered_copper",
        "minecraft:weathered_cut_copper",
        "minecraft:weathered_cut_copper_stairs",
        "minecraft:weathered_cut_copper_slab",
        "minecraft:waxed_weathered_copper",
        "minecraft:waxed_weathered_cut_copper",
        "minecraft:waxed_weathered_cut_copper_stairs",
        "minecraft:waxed_weathered_cut_copper_slab"
    ],
    [
        "minecraft:oxidized_copper",
        "minecraft:oxidized_cut_copper",
        "minecraft:oxidized_cut_copper_stairs",
        "minecraft:oxidized_cut_copper_slab",
        "minecraft:waxed_oxidized_copper",
        "minecraft:waxed_oxidized_cut_copper",
        "minecraft:waxed_oxidized_cut_copper_stairs",
        "minecraft:waxed_oxidized_cut_copper_slab"
    ]
]