void location()
{
cout<<" where is your location now? "<<endl;
cin>>location;
if (location==boston)
{
   cout<<" gina is trying to work hard now."<<endl;
   cout<<" gina is safe in boston right now."<<endl;
   cout<<" dun have to worry about gina. :) "<<endl;
}
else if (location==singapore)
   cout<<" gina is trying to have fun now."<<endl;
else
   cout<<" gina must be wasting money now."<<endl;
} //back