how to parse txt file using c++

this is the txt file to read. its on specific format

by using sstream and getline function i have to extract id, title, author ,abstract and store all the respective words in vector. i am stuck.

using namespace std;

int main(){

string filename;
cout<<"Please enter the name of the collection file: ";
getline(cin,filename);

fstream file(filename.c_str());

if(!file)
{
    cout<<"Error!! opeaning the file. Please check your file name. \n";
    return EXIT_FAILURE;
}

else{