diff --git a/contracts/Contract.sol b/contracts/Contract.sol
index aad94b5..a41d5d6 100644
--- a/contracts/Contract.sol
+++ b/contracts/Contract.sol
@@ -6,7 +6,7 @@ interface IERC721 {
         address _from,
         address _to,
         uint256 _id
-    );
+    )external;
 }
 contract Contract {
     address public nftaddress;
@@ -51,11 +51,11 @@ contract Contract {
     
     function list1(
         uint256 _nftID, 
-       string  _amenities,
+       string memory _amenities,
        uint256 _sqfoot,
        uint256 _bedno,
-       string  _img,
-       string _descp,
+       string memory _img,
+       string memory _descp,
        uint256 _purchasePrice,
        uint256 _tokenID)public {
         IERC721(nftaddress).transferFrom(seller, address(this), _tokenID);