Ask AI: Can you produce a NFT smart contract code for real estate

asset? pragma solidity ^0.4.24; // NFT Contract for Real Estate contract RealEstate { //Protected variables address public owner; uint256 public totalSupply; mapping (uint256 => Token) public tokens; mapping (address => uint256) public balances; mapping (address => mapping (uint256 => bool)) public approves; mapping (address => mapping (address => uint256)) public allowances; //Events event Transfer(address indexed _from, address indexed _to, uint256 _tokenId); event Approval(address indexed _owner, address indexed _spender, uint256 _tokenId); //Constructor constructor() public { owner = msg.sender; } //Creator function function createToken(uint256 _tokenId) public { require(msg.sender == owner, "Owner required"); Token storage token = tokens[_tokenId]; token.owner = msg.sender; token.tokenId = _tokenId; balances[msg.sender] +=1; totalSupply++; } //Transfer function function transfer(address _to, uint256 _tokenId) public { require(balances[msg.sender] > 0); require(balances[_to] < balances[_tokenId]); Token storage token = tokens[_tokenId]; transferOwnership(token, msg.sender, _to); emit Transfer(msg.sender, _to, _tokenId); } //Approval function function approve(address _spender, uint256 _tokenId) public { approves[msg.sender][_tokenId] = true; allowances[msg.sender][_spender] = _tokenId; emit Approval(msg.sender, _spender, _tokenId); } //Transfer ownership function function transferOwnership(Token storage token, address _from, address _to) private { token.owner = _to;