@Override
    public boolean matches(InventoryCrafting inventoryCrafting, World world) {
        ItemStack itemStack = null;
        ItemStack itemStack1 = null;
        ItemStack itemStack2 = ModItems.itemSaw

        for (int i = 0; i < inventoryCrafting.getSizeInventory(); ++i) {
                if (itemStack2 != null) {
                    if (itemStack2.getItem() != ModItems.itemSaw) {
                        return false;
                    }

                    if (itemStack != null && itemStack1 != null) {
                        return false;
                    }
                }
        }

        return itemStack != null && itemStack1 != null;
    }