pragma solidity >=0.4.22 <0.6.0;

contract Object{
    address oid;

    struct Attribute{
        string attrName;
        string attrValue;
    }

    mapping(string=>string) oa;

    constructor()public payable{

    }
    function appendAttribute(string memory _attrName,string memory _value) public{
        oa[_attrName] = _value;

    }

    function getAttriuteValue(string memory _attrName)
    public
    returns (string memory)
    {
        return oa[_attrName];
    }



}